23A256-I/P Microchip Technology, 23A256-I/P Datasheet - Page 3

• 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

TABLE 1-2:
TABLE 1-3:
© 2009 Microchip Technology Inc.
AC CHARACTERISTICS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Note 1:
AC Waveform:
Timing Measurement Reference Level:
Param.
No.
Input pulse level
Input rise/fall time
Operating temperature
C
Input
Output
L
= 100 pF
F
T
T
T
Tsu
T
T
T
T
T
T
T
T
T
T
T
T
T
Sym.
CSS
CSH
CSD
CLD
CLK
HD
R
F
HI
LO
V
HO
DIS
HS
HH
HZ
HV
This parameter is periodically sampled and not 100% tested.
Clock frequency
CS setup time
CS hold time
CS disable time
Data setup time
Data hold time
CLK rise time
CLK fall time
Clock high time
Clock low time
Clock delay time
Output valid from clock low
Output hold time
Output disable time
HOLD setup time
HOLD hold time
HOLD low to output High-Z
HOLD high to output valid
AC CHARACTERISTICS
AC TEST CONDITIONS
Characteristic
0.1 V
-40°C to +85°C
CC
0.5 V
0.5 V
5 ns
—
to 0.9 V
CC
CC
CC
Industrial (I):
Preliminary
Min.
32
25
50
50
32
25
10
10
10
10
32
25
32
25
32
25
10
10
10
—
—
—
—
—
—
—
—
—
0
Max.
16
20
32
25
20
20
50
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
T
2
2
A
= -40°C to +85°C
Units
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
us
us
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
23A256/23K256
V
V
V
V
V
V
V
V
V
V
V
V
Note 1
Note 1
V
V
V
V
V
V
V
V
Note 1
V
V
—
—
—
—
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
= 1.8V
= 3.0V
= 1.8V
= 3.0V
= 1.8V
= 3.0V
= 1.8V
= 3.0V
= 1.8V
= 3.0V
= 1.8V
= 3.0V
= 1.8V
= 3.0V
= 1.8V
= 3.0V
= 1.8V
= 3.0V
= 1.8V
= 3.0V
= 1.8V
= 3.0V
Test Conditions
DS22100C-page 3