IDT71256SA20TPG IDT, Integrated Device Technology Inc, IDT71256SA20TPG Datasheet - Page 4

• Manufacturer Part Number: IDT71256SA20TPG
• Description: IC SRAM 256KBIT 20NS 28DIP
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT71256SA20TPG

• Format - Memory: RAM
• Memory Type: SRAM
• Memory Size: 256K (32K x 8)
• Speed: 20ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-DIP (0.300", 7.62mm)
• Density: 256Kb
• Access Time (max): 20ns
• Sync/async: Asynchronous
• Architecture: Not Required
• Clock Freq (max): Not RequiredMHz
• Operating Supply Voltage (typ): 5V
• Address Bus: 15b
• Package Type: PDIP
• Operating Temp Range: 0C to 70C
• Number Of Ports: 1
• Supply Current: 145mA
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Pin Count: 28
• Word Size: 8b
• Number Of Words: 32K
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 71256SA20TPG; 800-1430; 800-1430-5; 800-1430

AC Electrical Characteristics
NOTE:
1. This parameter is guaranteed with the AC Load (Figure 2) by device characterization, but is not production tested.
Symbol
Read Cycle
t
t
t
t
t
t
t
t
t
t
t
Write Cycle
t
t
t
t
t
t
t
t
t
t
RC
AA
ACS
CLZ
CHZ
OE
OLZ
OHZ
OH
PU
PD
WC
AW
CW
AS
WP
WR
DW
DH
OW
WHZ
IDT71256SA
CMOS Static RAM 256K (32K x 8-Bit)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
Read Cycle Time
Chip Select Access Time
Chip Select to Output in Low-Z
Chip Sele ct to Output in High-Z
Output Enable to Output Valid
Output Enab le to Output in Low-Z
Output Disab le to Output in High-Z
Output Hold from Address Change
Chip Sele ct to Power Up Time
Chip Deselect to Power Down Time
Chip Select to End-of-Write
Data Valid to End-of-Write
Data Hold Time
Output Active from End-of-Write
Address Access Time
Write Cycle Time
Address Valid to End-of-Write
Address Set-up Time
Write Pulse Width
Write Recovery Time
Write Enab le to Output in High-Z
Parameter
(V
CC
Min.
= 5.0V ± 10%)
____
____
____
____
12
12
71256SA12
4
0
0
0
3
0
9
9
0
8
0
6
0
4
0
4
Max.
____
____
____
____
____
____
____
____
____
____
____
____
____
____
12
12
12
6
6
6
6
Min.
____
____
____
____
15
15
10
10
10
71256SA15
4
0
0
0
3
0
0
0
7
0
4
0
Commercial and Industrial Temperature Ranges
Max.
____
____
____
____
____
____
____
____
____
____
____
____
____
____
15
15
15
7
7
6
6
Min.
____
____
____
____
20
20
15
15
15
11
71256SA20
4
0
0
0
3
0
0
0
0
4
0
Max.
____
____
____
____
____
____
____
____
____
____
____
____
____
____
20
20
20
10
10
10
8
Min.
____
____
____
____
25
25
20
20
20
13
71256SA25
4
0
0
0
3
0
0
0
0
4
0
Max.
____
____
____
____
____
____
____
____
____
____
____
____
____
____
25
25
25
10
11
11
11
2948 tbl 09
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns