23A256-I/P Microchip Technology, 23A256-I/P Datasheet - Page 4

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

Specifications of 23A256-I/P

• Memory Size: 256K (32K x 8)
• 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
• Package / Case: 8-DIP (0.300", 7.62mm)
• Memory Configuration: 32K X 8
• Clock Frequency: 16MHz
• Supply Voltage Range: 1.7V To 1.95V
• Memory Case Style: DIP
• No. Of Pins: 8
• Operating Temperature Range: -40°C To +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: Through Hole
• 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

23A256/23K256
FIGURE 1-1:
FIGURE 1-2:
FIGURE 1-3:
DS22100C-page 4
SCK
SO
CS
SCK
SI
SO
CS
HOLD
SI
SCK
CS
SO
SI
HOLD TIMING
SERIAL INPUT TIMING
SERIAL OUTPUT TIMING
2
n + 2
n + 2
5
MSB out
MSB in
9
6
12
10
n + 1
15
n + 1
High-Impedance
Don’t Care
n
16
7
17
n
Preliminary
High-Impedance
Don’t Care
13
8
15
17
LSB in
16
3
n
© 2009 Microchip Technology Inc.
n
5
LSB out
11
4
14
3
n - 1
n - 1