W25Q16BVSFIG Winbond Electronics, W25Q16BVSFIG Datasheet - Page 50

• Manufacturer Part Number: W25Q16BVSFIG
• Description: IC SPI FLASH 16MBIT 16SOIC
• Manufacturer: Winbond Electronics

Specifications of W25Q16BVSFIG

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 16M (2M x 8)
• Speed: 104MHz
• Interface: SPI Serial
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 16-SOIC (0.300", 7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The Read Unique ID Number instruction accesses a factory-set read-only 64-bit number that is unique to
each W25Q16BV device. The ID number can be used in conjunction with user software methods to help
prevent copying or cloning of a system. The Read Unique ID instruction is initiated by driving the /CS pin
low and shifting the instruction code “4Bh” followed by a four bytes of dummy clocks. After which, the 64-
bit ID is shifted out on the falling edge of CLK as shown in figure 29.
11.2.30 Read Unique ID Number (4Bh)
DO
DO
DO
DO
*=MSB
*=MSB
24 25
24 25
26
26
27 28
27 28
Figure 29. Read Unique ID Number Instruction Sequence Diagram
29 30
29 30
31 32 33
31 32 33
34
34
35 36
35 36
- 50 -
37 38
37 38
39
39
*
*
40
40
63 62 61 60 59
63 62 61 60 59
41
41
42 43 44 101 102 103
42 43 44 101 102 103
2
2
W25Q16BV
1
1
0
0