IDT71256S100DB IDT, Integrated Device Technology Inc, IDT71256S100DB Datasheet - Page 5

• Manufacturer Part Number: IDT71256S100DB
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT71256S100DB

• Density: 256Kb
• Access Time (max): 100ns
• Sync/async: Asynchronous
• Architecture: Not Required
• Clock Freq (max): Not RequiredMHz
• Operating Supply Voltage (typ): 5V
• Address Bus: 15b
• Package Type: CDIP
• Operating Temp Range: -55C to 125C
• Number Of Ports: 1
• Supply Current: 135mA
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temperature Classification: Military
• Mounting: Through Hole
• Pin Count: 28
• Word Size: 8b
• Number Of Words: 32K
• Lead Free Status / RoHS Status: Not Compliant

Low V
AC Electrical Characteristics
NOTES:
1. 0° to +70°C temperature range only.
2. This parameter is guaranteed by device characterization, but is not production tested.
3. –55°C to +125°C temperature range only.
Symbol
Read Cycle
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
WC
CW
AW
AS
WP
WR
DW
WHZ
DH
OW
IDT71256S/L
CMOS Static RAM 256K (32K x 8-Bit)
(2)
(2)
(2)
(2)
(2)
(2)
V
CS
CC
Read Cycle Time
Chip Select Access Time
Chip Select to Output in Low-Z
Chip Desele 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 Select to End-of-Write
Data to Write Time Overlap
Data Hold from Write Time
Output Active from End-of-Write
CC
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
Data Retention Waveform
Parameter
t
CDR
V
4.5V
IH
(V
CC
= 5.0V ± 10%, All Temperature Ranges)
Min.
RETENTION
____
____
____
____
____
6.42
20
20
15
15
15
11
71256L20
5
2
2
5
0
0
0
5
V
5
MODE
DR
DATA
V
DR
2V
Max.
____
____
____
____
____
____
____
____
____
____
____
____
____
20
20
(1)
10
10
10
8
Military, Commercial, and Industrial Temperature Ranges
Min.
____
____
____
____
____
25
25
20
20
20
13
5
2
2
5
0
0
0
5
71256S25
71256L25
Max.
____
____
____
____
____
____
____
____
____
____
____
____
____
25
25
10
11
11
11
4.5V
V
IH
Min.
____
____
____
____
____
35
35
30
30
30
15
5
2
2
5
0
0
0
5
71256S35
71256L35
t
R
Max.
____
____
____
____
____
____
____
____
____
____
____
____
____
35
35
15
15
15
15
Min.
____
____
____
____
____
____
45
45
40
40
35
20
71256S45
71256L45
5
0
5
0
0
0
5
2946 drw 06
Max.
____
____
____
____
____
____
____
____
____
____
____
____
____
45
45
20
20
20
20
(3)
(3)
2946 tbl 12
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns