diff --git a/flashchips.c b/flashchips.c
index cbbb138..6ec3749 100644
--- a/flashchips.c
+++ b/flashchips.c
@@ -10007,13 +10007,14 @@
 
 	{
 		.vendor		= "Winbond",
-		.name		= "W25Q80",
+		.name		= "W25Q80.V",
 		.bustype	= BUS_SPI,
 		.manufacture_id	= WINBOND_NEX_ID,
-		.model_id	= WINBOND_NEX_W25Q80,
+		.model_id	= WINBOND_NEX_W25Q80_V,
 		.total_size	= 1024,
 		.page_size	= 256,
-		/* OTP: 1024B total, 256B reserved; read 0x48; write 0x42 */
+		/* supports SFDP */
+		/* OTP: 1024B total, 256B reserved; read 0x48; write 0x42, erase 0x44, read ID 0x4B */
 		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP,
 		.tested		= TEST_OK_PREW,
 		.probe		= probe_spi_rdid,
@@ -10046,13 +10047,14 @@
 
 	{
 		.vendor		= "Winbond",
-		.name		= "W25Q16",
+		.name		= "W25Q16.V",
 		.bustype	= BUS_SPI,
 		.manufacture_id	= WINBOND_NEX_ID,
-		.model_id	= WINBOND_NEX_W25Q16,
+		.model_id	= WINBOND_NEX_W25Q16_V,
 		.total_size	= 2048,
 		.page_size	= 256,
-		/* OTP: 1024B total, 256B reserved; read 0x48; write 0x42 */
+		/* supports SFDP */
+		/* OTP: 1024B total, 256B reserved; read 0x48; write 0x42, erase 0x44, read ID 0x4B */
 		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP,
 		.tested		= TEST_OK_PREW,
 		.probe		= probe_spi_rdid,
@@ -10085,13 +10087,14 @@
 
 	{
 		.vendor		= "Winbond",
-		.name		= "W25Q32",
+		.name		= "W25Q32.V",
 		.bustype	= BUS_SPI,
 		.manufacture_id	= WINBOND_NEX_ID,
-		.model_id	= WINBOND_NEX_W25Q32,
+		.model_id	= WINBOND_NEX_W25Q32_V,
 		.total_size	= 4096,
 		.page_size	= 256,
-		/* OTP: 1024B total, 256B reserved; read 0x48; write 0x42 */
+		/* supports SFDP */
+		/* OTP: 1024B total, 256B reserved; read 0x48; write 0x42, erase 0x44, read ID 0x4B */
 		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP,
 		.tested		= TEST_OK_PREW,
 		.probe		= probe_spi_rdid,
@@ -10124,13 +10127,14 @@
 
 	{
 		.vendor		= "Winbond",
-		.name		= "W25Q64",
+		.name		= "W25Q64.V",
 		.bustype	= BUS_SPI,
 		.manufacture_id	= WINBOND_NEX_ID,
-		.model_id	= WINBOND_NEX_W25Q64,
+		.model_id	= WINBOND_NEX_W25Q64_V,
 		.total_size	= 8192,
 		.page_size	= 256,
-		/* OTP: 1024B total, 256B reserved; read 0x48; write 0x42 */
+		/* supports SFDP */
+		/* OTP: 1024B total, 256B reserved; read 0x48; write 0x42, erase 0x44, read ID 0x4B */
 		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP,
 		.tested		= TEST_OK_PREW,
 		.probe		= probe_spi_rdid,
@@ -10158,17 +10162,19 @@
 		.unlock		= spi_disable_blockprotect,
 		.write		= spi_chip_write_256,
 		.read		= spi_chip_read,
+		.voltage	= {2700, 3600},
 	},
 
 	{
 		.vendor		= "Winbond",
-		.name		= "W25Q128",
+		.name		= "W25Q128.V",
 		.bustype	= BUS_SPI,
 		.manufacture_id	= WINBOND_NEX_ID,
-		.model_id	= WINBOND_NEX_W25Q128,
+		.model_id	= WINBOND_NEX_W25Q128_V,
 		.total_size	= 16384,
 		.page_size	= 256,
-		/* OTP: 1024B total, 256B reserved; read 0x48; write 0x42 */
+		/* supports SFDP */
+		/* OTP: 1024B total, 256B reserved; read 0x48; write 0x42, erase 0x44, read ID 0x4B */
 		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP,
 		.tested		= TEST_OK_PROBE,
 		.probe		= probe_spi_rdid,
@@ -10196,6 +10202,244 @@
 		.unlock		= spi_disable_blockprotect,
 		.write		= spi_chip_write_256,
 		.read		= spi_chip_read,
+		.voltage	= {2700, 3600},
+	},
+
+	{
+		.vendor		= "Winbond",
+		.name		= "W25Q20.W",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= WINBOND_NEX_ID,
+		.model_id	= WINBOND_NEX_W25Q20_W,
+		.total_size	= 256,
+		.page_size	= 256,
+		/* OTP: 256B total; read 0x48; write 0x42, erase 0x44, read ID 0x4B */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP,
+		.tested		= TEST_UNTESTED,
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	=
+		{
+			{
+				.eraseblocks = { {4 * 1024, 64} },
+				.block_erase = spi_block_erase_20,
+			}, {
+				.eraseblocks = { {32 * 1024, 8} },
+				.block_erase = spi_block_erase_52,
+			}, {
+				.eraseblocks = { {64 * 1024, 4} },
+				.block_erase = spi_block_erase_d8,
+			}, {
+				.eraseblocks = { {256 * 1024, 1} },
+				.block_erase = spi_block_erase_60,
+			}, {
+				.eraseblocks = { {256 * 1024, 1} },
+				.block_erase = spi_block_erase_c7,
+			}
+		},
+		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
+		.unlock		= spi_disable_blockprotect,
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read,
+		.voltage	= {1700, 1950}, /* Fast read (0x0B) and multi I/O supported */
+	},
+
+	{
+		.vendor		= "Winbond",
+		.name		= "W25Q40.W",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= WINBOND_NEX_ID,
+		.model_id	= WINBOND_NEX_W25Q40_W,
+		.total_size	= 512,
+		.page_size	= 256,
+		/* OTP: 256B total; read 0x48; write 0x42, erase 0x44, read ID 0x4B */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP,
+		.tested		= TEST_UNTESTED,
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	=
+		{
+			{
+				.eraseblocks = { {4 * 1024, 128} },
+				.block_erase = spi_block_erase_20,
+			}, {
+				.eraseblocks = { {32 * 1024, 16} },
+				.block_erase = spi_block_erase_52,
+			}, {
+				.eraseblocks = { {64 * 1024, 8} },
+				.block_erase = spi_block_erase_d8,
+			}, {
+				.eraseblocks = { {512 * 1024, 1} },
+				.block_erase = spi_block_erase_60,
+			}, {
+				.eraseblocks = { {512 * 1024, 1} },
+				.block_erase = spi_block_erase_c7,
+			}
+		},
+		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
+		.unlock		= spi_disable_blockprotect,
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read,
+		.voltage	= {1700, 1950}, /* Fast read (0x0B) and multi I/O supported */
+	},
+
+	{
+		.vendor		= "Winbond",
+		.name		= "W25Q80.W",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= WINBOND_NEX_ID,
+		.model_id	= WINBOND_NEX_W25Q80_W,
+		.total_size	= 1024,
+		.page_size	= 256,
+		/* OTP: 256B total; read 0x48; write 0x42, erase 0x44, read ID 0x4B */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP,
+		.tested		= TEST_UNTESTED,
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	=
+		{
+			{
+				.eraseblocks = { {4 * 1024, 256} },
+				.block_erase = spi_block_erase_20,
+			}, {
+				.eraseblocks = { {32 * 1024, 32} },
+				.block_erase = spi_block_erase_52,
+			}, {
+				.eraseblocks = { {64 * 1024, 16} },
+				.block_erase = spi_block_erase_d8,
+			}, {
+				.eraseblocks = { {1 * 1024 * 1024, 1} },
+				.block_erase = spi_block_erase_60,
+			}, {
+				.eraseblocks = { {1 * 1024 * 1024, 1} },
+				.block_erase = spi_block_erase_c7,
+			}
+		},
+		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
+		.unlock		= spi_disable_blockprotect,
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read,
+		.voltage	= {1700, 1950}, /* Fast read (0x0B) and multi I/O supported */
+	},
+
+	{
+		.vendor		= "Winbond",
+		.name		= "W25Q16.W",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= WINBOND_NEX_ID,
+		.model_id	= WINBOND_NEX_W25Q16_W,
+		.total_size	= 2048,
+		.page_size	= 256,
+		/* OTP: 256B total; read 0x48; write 0x42, erase 0x44, read ID 0x4B */
+		/* QPI enable 0x38, disable 0xFF */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP | FEATURE_QPI,
+		.tested		= TEST_UNTESTED,
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	=
+		{
+			{
+				.eraseblocks = { {4 * 1024, 512} },
+				.block_erase = spi_block_erase_20,
+			}, {
+				.eraseblocks = { {32 * 1024, 64} },
+				.block_erase = spi_block_erase_52,
+			}, {
+				.eraseblocks = { {64 * 1024, 32} },
+				.block_erase = spi_block_erase_d8,
+			}, {
+				.eraseblocks = { {2 * 1024 * 1024, 1} },
+				.block_erase = spi_block_erase_60,
+			}, {
+				.eraseblocks = { {2 * 1024 * 1024, 1} },
+				.block_erase = spi_block_erase_c7,
+			}
+		},
+		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
+		.unlock		= spi_disable_blockprotect,
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read,
+		.voltage	= {1700, 1950}, /* Fast read (0x0B) and multi I/O supported */
+	},
+
+	{
+		.vendor		= "Winbond",
+		.name		= "W25Q32.W",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= WINBOND_NEX_ID,
+		.model_id	= WINBOND_NEX_W25Q32_W,
+		.total_size	= 4096,
+		.page_size	= 256,
+		/* OTP: 256B total; read 0x48; write 0x42, erase 0x44, read ID 0x4B */
+		/* QPI enable 0x38, disable 0xFF */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP | FEATURE_QPI,
+		.tested		= TEST_OK_PREW,
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	=
+		{
+			{
+				.eraseblocks = { {4 * 1024, 1024} },
+				.block_erase = spi_block_erase_20,
+			}, {
+				.eraseblocks = { {32 * 1024, 128} },
+				.block_erase = spi_block_erase_52,
+			}, {
+				.eraseblocks = { {64 * 1024, 64} },
+				.block_erase = spi_block_erase_d8,
+			}, {
+				.eraseblocks = { {4 * 1024 * 1024, 1} },
+				.block_erase = spi_block_erase_60,
+			}, {
+				.eraseblocks = { {4 * 1024 * 1024, 1} },
+				.block_erase = spi_block_erase_c7,
+			}
+		},
+		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
+		.unlock		= spi_disable_blockprotect,
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read,
+		.voltage	= {1700, 1950}, /* Fast read (0x0B) and multi I/O supported */
+	},
+
+	{
+		.vendor		= "Winbond",
+		.name		= "W25Q64.W",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= WINBOND_NEX_ID,
+		.model_id	= WINBOND_NEX_W25Q64_W,
+		.total_size	= 8192,
+		.page_size	= 256,
+		/* OTP: 256B total; read 0x48; write 0x42, erase 0x44, read ID 0x4B */
+		/* QPI enable 0x38, disable 0xFF */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP | FEATURE_QPI,
+		.tested		= TEST_UNTESTED,
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	=
+		{
+			{
+				.eraseblocks = { {4 * 1024, 2048} },
+				.block_erase = spi_block_erase_20,
+			}, {
+				.eraseblocks = { {32 * 1024, 256} },
+				.block_erase = spi_block_erase_52,
+			}, {
+				.eraseblocks = { {64 * 1024, 128} },
+				.block_erase = spi_block_erase_d8,
+			}, {
+				.eraseblocks = { {8 * 1024 * 1024, 1} },
+				.block_erase = spi_block_erase_60,
+			}, {
+				.eraseblocks = { {8 * 1024 * 1024, 1} },
+				.block_erase = spi_block_erase_c7,
+			}
+		},
+		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
+		.unlock		= spi_disable_blockprotect,
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read,
+		.voltage	= {1700, 1950}, /* Fast read (0x0B) and multi I/O supported */
 	},
 
 	{
diff --git a/flashchips.h b/flashchips.h
index 62be293..41903d2 100644
--- a/flashchips.h
+++ b/flashchips.h
@@ -655,12 +655,20 @@
 #define WINBOND_NEX_W25X16	0x3015
 #define WINBOND_NEX_W25X32	0x3016
 #define WINBOND_NEX_W25X64	0x3017
-#define WINBOND_NEX_W25Q40	0x4013
-#define WINBOND_NEX_W25Q80	0x4014
-#define WINBOND_NEX_W25Q16	0x4015
-#define WINBOND_NEX_W25Q32	0x4016
-#define WINBOND_NEX_W25Q64	0x4017
-#define WINBOND_NEX_W25Q128	0x4018
+#define WINBOND_NEX_W25Q40_V	0x4013	/* W25Q40BV; W25Q40BL (2.3-3.6V) */
+#define WINBOND_NEX_W25Q80_V	0x4014	/* W25Q80BV */
+#define WINBOND_NEX_W25Q16_V	0x4015	/* W25Q16CV; W25Q16DV */
+#define WINBOND_NEX_W25Q32_V	0x4016	/* W25Q32BV; W25Q32FV in SPI mode (default) */
+#define WINBOND_NEX_W25Q64_V	0x4017	/* W25Q64BV, W25Q64CV; W25Q64FV in SPI mode (default) */
+#define WINBOND_NEX_W25Q128_V	0x4018	/* W25Q128BV; W25Q128FV in SPI mode (default) */
+#define WINBOND_NEX_W25Q256_V	0x4019	/* W25Q256FV */
+#define WINBOND_NEX_W25Q20_W	0x5012	/* W25Q20BW */
+#define WINBOND_NEX_W25Q40_W	0x5013	/* W25Q40BW */
+#define WINBOND_NEX_W25Q80_W	0x5014	/* W25Q80BW */
+#define WINBOND_NEX_W25Q16_W	0x6015	/* W25Q16DW */
+#define WINBOND_NEX_W25Q32_W	0x6016	/* W25Q32DW; W25Q32FV in QPI mode */
+#define WINBOND_NEX_W25Q64_W	0x6017	/* W25Q64DW; W25Q64FV in QPI mode */
+#define WINBOND_NEX_W25Q128_W	0x6018	/* (No W version known) W25Q128FV in QPI mode */
 
 #define WINBOND_ID		0xDA	/* Winbond */
 #define WINBOND_W19B160BB	0x49