23A256-I/SN Microchip Technology, 23A256-I/SN Datasheet - Page 9

• Manufacturer Part Number: 23A256-I/SN
• Description: IC SRAM 256KBIT 20MHZ 8SOIC
• Manufacturer: Microchip Technology
• Type: Synchronousr

Specifications of 23A256-I/SN

• Memory Size: 256K (32K x 8)
• Package / Case: 8-SOIC (3.9mm Width)
• Format - Memory: RAM
• Memory Type: SRAM
• Speed: 20MHz
• Interface: SPI Serial
• Voltage - Supply: 1.7 V ~ 1.95 V
• Operating Temperature: -40°C ~ 85°C
• Access Time: 32 ns
• Maximum Clock Frequency: 16 MHz
• Supply Voltage (max): 1.95 V
• Supply Voltage (min): 1.5 V
• Maximum Operating Current: 10 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Number Of Ports: 1
• Operating Supply Voltage: 1.8 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

FIGURE 2-6:
© 2009 Microchip Technology Inc.
SCK
SCK
CS
CS
SI
SI
0
0
32
7
1
0
33
0
6
Instruction
2
SEQUENTIAL WRITE SEQUENCE
34 35 36 37 38 39
5
3
0
Data Byte 2
0
4
4
3
5
0
1
2
6
0
1
7
15 14 13 12
0
8
40
7
9 10 11
41 42 43
16-bit Address
6
Preliminary
Data Byte 3
5
4
44 45
3
21 22 23 24 25 26 27 28 29 30 31
2
2
46 47
1
1
0
0
7
23A256/23K256
6
7
5
6
Data Byte 1
4
5
Data Byte n
3
4
2
3
1
2
DS22100C-page 9
0
1
0