IDT70121S55J IDT, Integrated Device Technology Inc, IDT70121S55J Datasheet - Page 6

• Manufacturer Part Number: IDT70121S55J
• Description: IC SRAM 18KBIT 55NS 52PLCC
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT70121S55J

• Format - Memory: RAM
• Memory Type: SRAM - Dual Port, Asynchronous
• Memory Size: 18K (2K x 9)
• Speed: 55ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 52-PLCC
• Density: 18Kb
• Access Time (max): 55ns
• Sync/async: Asynchronous
• Architecture: Not Required
• Clock Freq (max): Not RequiredMHz
• Operating Supply Voltage (typ): 5V
• Address Bus: 22b
• Package Type: PLCC
• Operating Temp Range: 0C to 70C
• Number Of Ports: 2
• Supply Current: 240mA
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 52
• Word Size: 9b
• Number Of Words: 2K
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 70121S55J

AC Electrical Characteristics Over the
Operating Temperature and Supply Voltage Range
NOTES:
1. Transition is measured 0mV from Low or High-impedance voltage with the Output Test Load (Figure 2).
2. This parameter guaranteed by device characterization, but is not production tested.
3. 'X' in part numbers indicates power rating (S or L).
READ CYCLE
READ CYCLE
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
RC
AA
ACE
AOE
OH
LZ
HZ
PU
PD
RC
AA
ACE
AOE
OH
LZ
HZ
PU
PD
IDT70121/IDT70125
High-Speed 2K x 9 Dual-Port Static RAM with Busy & Interrupt
Symbol
Symbol
Read Cycle Time
Chip Enable Access Time
Output Enable Access Time
Output Hold from Address Change
Output Low-Z Time
Output High-Z Time
Chip Enable to Power Up Time
Chip Disable to Power Down Time
Read Cycle Time
Chip Enable Access Time
Output Enable Access Time
Output Hold from Address Change
Output Low-Z Time
Output High-Z Time
Chip Enable to Power Up Time
Chip Disable to Power Down Time
Address Access Time
Address Access Time
(1,2)
(1,2)
(1,2)
(1,2)
(2)
(2)
(2)
(2)
Parameter
Parameter
6.42
6
Industrial and Commercial Temperature Ranges
Min.
Min.
____
____
____
____
____
____
____
____
____
____
25
45
(3)
0
0
0
0
0
0
Com'l Only
Com'l Only
70121X25
70125X25
70121X45
70125X45
Max.
Max.
____
____
____
____
____
____
____
____
25
25
50
45
45
30
20
50
12
10
Min.
Min.
____
____
____
____
____
____
____
____
____
____
35
55
0
0
0
0
0
0
Com'l Only
70121X35
70125X35
70121X55
70125X55
Com'l
& Ind
Max.
Max.
____
____
____
____
____
____
____
____
35
35
25
15
50
55
55
35
30
50
2654 tbl 09b
2654 tbl 09a
Unit
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns