CAT25040VI-GT3 ON Semiconductor, CAT25040VI-GT3 Datasheet - Page 7

• Manufacturer Part Number: CAT25040VI-GT3
• Description: IC EEPROM 4KBIT 10MHZ 8SOIC
• Manufacturer: ON Semiconductor

Specifications of CAT25040VI-GT3

• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Memory Size: 4K (512 x 8)
• Speed: 10MHz
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 25040VI-GT3; CAT25040VI-GT3TR

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
7
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 to the status register. If
the internal write cycle has already been initiated, WP going
low will have no effect on any write operation to the Status
Register. 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