IDT70825S/L
High-Speed 8K x 16 Sequential Access Random Access Memory
Industrial and Commercial Temperature Ranges
Sequential Port: AC Electrical Characteristics Over the
Operating Temperature and Supply Voltage Range(1,3)
70825X20
70825X25
70825X35
70825X45
Com'l Only
Com'l Only
Com'l Only
Com'l Only
Symbol
Parameter
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Unit
READ CYCLE
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
t
CYC
CH
CL
ES
EH
SOE
OLZ
OHZ
CD
CKHZ
CKLZ
EB
Sequential Clock Cycle Time
25
10
10
5
30
12
12
5
40
15
15
6
50
18
18
6
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
t
Clock Pulse HIGH
t
Clock Pulse LOW
t
Count Enable and Address Pointer Set-up Time
Count Enable and Address Pointer Hold Time
Output Enable to Data Valid
Output Enable Low-Z Time(2)
Output Enable High-Z Time(2)
Clock to Valid Data
t
2
2
2
2
____
____
____
____
t
8
10
15
20
____
____
____
____
t
2
2
2
2
____
____
____
____
t
9
11
25
15
35
15
45
____
____
____
____
____
____
____
____
t
20
t
Clock High-Z Time(2)
12
14
17
20
t
Clock Low-Z Time(2)
3
3
3
3
____
____
____
____
____
____
____
____
t
Clock to EOB
13
15
18
23
ns
3016 tbl 22a
Sequential Port: AC Electrical Characteristics
Over the Operating Temperature and Supply Voltage(1,3)
70825X20
70825X25
70825X35
Com'l Only
70825X45
Com'l Only
Com'l Only
Com'l Only
Symbol
Parameter
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Unit
WRITE CYCLE
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
t
CYC
FS
WS
WH
DS
DH
Sequential Clock Cycle Time
25
13
5
30
15
5
40
20
6
50
20
6
ns
ns
ns
ns
ns
t
Flow Restart Time
t
Chip Select and Read/Write Set-up Time
Chip Select and Read/Write Hold Time
Input Data Set-up Time
t
2
2
2
2
t
5
5
6
6
t
Input Data Hold Time
2
2
2
2
ns
3016 tbl 23a
NOTES:
1. 'X' in part number indicates power rating (S or L).
2. Transition measured at 0mV from steady state. This parameter is guaranteed with the AC Output Test Load (Figure 1) by device characterization, but is not production
tested.
3. Industrial temperature: for specific speeds, packages and powers contact your sales office.
14
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
