CAT25020HU4I-GT3 ON Semiconductor, CAT25020HU4I-GT3 Datasheet - Page 8

• Manufacturer Part Number: CAT25020HU4I-GT3
• Description: EEPROM 2KB SPI SER CMOS EEPROM
• Manufacturer: ON Semiconductor

Specifications of CAT25020HU4I-GT3

• Rohs: yes
• Memory Size: 2 KB
• Organization: 256 x 8
• Data Retention: 100 yr
• Maximum Clock Frequency: 10 MHz
• Maximum Operating Current: 2 mA
• Operating Supply Voltage: 1.8 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: UDFN-8

Write Status Register
instruction according to timing shown in Figure 7. Only bits
2 and 3 can be written using the WRSR command.
SCK
SO
CS
The Status Register is written by sending a WRSR
SI
Dashed Line = mode (1, 1)
SCK
WP
WP
CS
Dashed Line = mode (1, 1)
0
0
0
1
HIGH IMPEDANCE
0
2
0
3
OPCODE
0
4
0
5
Figure 7. WRSR Timing
Figure 8. WP Timing
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6
1
7
8
t
WPS
MSB
7
8
Write Protection
array and Status Register are inhibited. WP going low while
CS is still low will interrupt a write operation. If the internal
write cycle has already been initiated, WP going low will
have no effect on any write operation to the Status Register
or memory array. The WP input timing is shown in Figure 8.
When WP input is low all write operations to the memory
t
9
6
WPH
10
5
11
4
DATA IN
12
3
13
2
14
1
15
0