IDT71421SA20J IDT, Integrated Device Technology Inc, IDT71421SA20J Datasheet - Page 14

• Manufacturer Part Number: IDT71421SA20J
• Description: IC SRAM 16KBIT 20NS 52PLCC
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT71421SA20J

• Format - Memory: RAM
• Memory Type: SRAM - Dual Port, Asynchronous
• Memory Size: 16K (2K x 8)
• Speed: 20ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 52-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 71421SA20J

AC Electrical Characteristics Over the
Operating Temperature Supply Voltage Range
NOTES:
1. 'X' in part numbers indicates power rating (SA or LA).
Timing Waveform of Interrupt Mode
SET INT
ADDR
NOTES:
1. All timing is the same for left and right ports. Port “A” may be either left or right port. Port “B” is the opposite from port “A”.
2. See Interrupt Truth Table.
3. Timing depends on which enable signal (CE or R/W) is asserted last.
4. Timing depends on which enable signal (CE or R/W) is de-asserted first.
INTERRUPT TIMING
ADDR
CLEAR INT
t
t
t
t
AS
WR
INS
INR
IDT71321SA/LA and IDT71421SA/LA
High Speed 2K x 8 Dual-Port Static RAM with Interrupts
R/W
INT
Symbol
INT
OE
"B"
"B"
"B"
"A"
"A"
"B"
Interrupt Set Time
Interrupt Reset Time
Address Set-up Time
Write Recovery Time
t
AS
(3)
INTERRUPT ADDRESS
t
INS
(3)
t
WC
Parameter
(2)
t
(1)
WR
6.42
(4)
14
t
AS
(3)
INTERRUPT CLEAR ADDRESS
t
INR
(1)
Industrial and Commercial Temperature Ranges
(3)
t
RC
Min.
____
____
0
0
Com'l Only
71321X35
71421X35
Max.
____
____
25
25
(2)
Min.
____
____
0
0
71321X55
71421X55
Com'l
& Ind
2691 drw 15
Max.
____
____
45
45
2691 drw 14
2691 tbl 11b
Unit
ns
ns
ns
ns
,