参数资料
型号: IDT70261L20PFI
厂商: IDT, Integrated Device Technology Inc
文件页数: 5/19页
文件大小: 0K
描述: IC SRAM 256KBIT 20NS 100TQFP
标准包装: 45
格式 - 存储器: RAM
存储器类型: SRAM - 双端口,异步
存储容量: 256K(16K x 16)
速度: 20ns
接口: 并联
电源电压: 4.5 V ~ 5.5 V
工作温度: -40°C ~ 85°C
封装/外壳: 100-LQFP
供应商设备封装: 100-TQFP(14x14)
包装: 托盘
其它名称: 70261L20PFI
IDT70261S/L
High-Speed 16K x 16 Dual-Port Static RAM with Interrupt
Industrial and Commercial Temperature Ranges
DC Electrical Characteristics Over the Operating
Temperature and Supply Voltage Range (1) (V CC = 5.0V ± 10%)
70261X15
Com'l Only
70261X20
Com'l & Ind
70261X25
Com'l & Ind
Symbol
Parameter
Test Condition
Version
Typ. (2)
Max.
Typ. (2)
Max.
Typ. (2)
Max.
Unit
I CC
Dynamic Operating Current
(Both Ports Active)
CE = V IL , Outputs Disabled
SEM = V IH
f = f MAX (3)
COM'L
IND
S
L
S
190
190
____
325
285
____
180
180
____
315
275
____
170
170
170
305
265
345
mA
L
____
____
180
315
____
____
I SB1
Standby Current
(Both Ports - TTL Level
Inputs)
CE L = CE R = V IH
SEM R = SEM L = V IH
f = f MAX (3)
COM'L
IND
S
L
S
35
35
____
95
70
____
30
30
____
85
60
____
25
25
25
85
60
100
mA
L
____
____
30
80
____
____
I SB2
Standby Current
(One Port - TTL Level Inputs)
CE "A" = V IL and CE "B" = V IH (5)
Active Port Outputs Disabled,
f=f MAX (3)
SEM R = SEM L = V IH
COM'L
IND
S
L
S
125
125
____
220
190
____
115
115
____
210
180
____
105
105
105
200
170
230
mA
L
____
____
115
210
____
____
I SB3
I SB4
Full Standby Current (Both
Ports - All CMOS Level
Inputs)
Full Standby Current
(One Port - All CMOS Level
Inputs)
Both Ports CE L and
CE R > V CC - 0.2V
V IN > V CC - 0.2V or
V IN < 0.2V, f = 0 (4)
SEM R = SEM L > V CC - 0.2V
CE "A" < 0.2V and
CE "B" > V CC - 0.2V (5)
SEM R = SEM L > V CC - 0.2V
COM'L
IND
COM'L
S
L
S
L
S
L
1.0
0.2
____
____
120
120
15
5
____
____
195
170
1.0
0.2
____
0.2
110
110
15
5
____
10
185
160
1.0
0.2
1.0
____
100
100
15
5
30
____
170
145
mA
mA
V IN > V CC - 0.2V or V IN < 0.2V
Active Port Outputs Disabled
f = f MAX (3)
IND
S
L
____
____
____
____
____
110
____
185
100
____
200
____
3039 tbl 10
70261X35
Com'l Only
70261X55
Com'l Only
Symbol
Parameter
Test Condition
Version
Typ. (2)
Max.
Typ. (2)
Max.
Unit
I CC
Dynamic Operating
Current
(Both Ports Active)
CE = V IL , Outputs Disabled
SEM = V IH
f = f MAX (3)
COM'L
IND
S
L
S
160
160
____
295
255
____
150
150
____
270
230
____
mA
mA
L
____
____
____
____
I SB1
Standby Current
(Both Ports - TTL Level
Inputs)
CE L = CE R = V IH
SEM R = SEM L = V IH
f = f MAX (3)
COM'L
IND
S
L
S
20
20
____
85
60
____
13
13
____
85
60
____
mA
mA
L
____
____
____
____
I SB2
I SB3
I SB4
Standby Current
(One Port - TTL Level
Inputs)
Full Standby Current
(Both Ports - All CMOS
Level Inputs)
Full Standby Current
(One Port - All CMOS
Level Inputs)
CE "A" = V IL and CE "B" = V IH (5)
Active Port Outputs Disabled,
f=f MAX (3)
SEM R = SEM L = V IH
Both Ports CE L and
CE R > V CC - 0.2V
V IN > V CC - 0.2V or
V IN < 0.2V, f = 0 (4)
SEM R = SEM L > V CC - 0.2V
CE "A" < 0.2V and
CE "B" > V CC - 0.2V (5)
SEM R = SEM L > V CC - 0.2V
V IN > V CC - 0.2V or V IN < 0.2V
Active Port Outputs Disabled
f=f MAX (3)
COM'L
IND
COM'L
IND
COM'L
IND
S
L
S
L
S
L
S
L
S
L
S
L
95
95
____
____
1.0
0.2
____
____
90
90
____
____
185
155
____
____
15
5
____
____
160
135
____
____
85
85
____
____
1.0
0.2
____
____
80
80
____
____
165
135
____
____
15
5
____
____
135
110
____
____
mA
mA
mA
mA
mA
mA
NOTES:
1. 'X' in part numbers indicates power rating (S or L).
2. V CC = 5V, T A = +25°C, and are not production tested. I CCDC = 120mA (Typ.)
3. At f = f MAX , address and control lines (except Output Enable) are cycling at the maximum frequency read cycle of 1/t RC , and using
“AC Test Conditions” of input levels of GND to 3V.
4. f = 0 means no address or control lines change.
5. Port "A" may be either left or right port. Port "B" is the opposite from port "A".
5
6.42
3039 tbl 11
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