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參數(shù)資料
| 型號： | SN54F253FK |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 128Kx8 Nonvolatile SRAM, 10% Voltage Tolerance 32-DIP MODULE -40 to 85 |
| 中文描述： | 雙1 - - 4數(shù)據(jù)選擇器/多路復用3態(tài)輸出 |
| 文件頁數(shù)： | 5/7頁 |
| 文件大?。?/td> | 97K |
| 代理商： | SN54F253FK |
SN54F253, SN74F253
DUAL 1-OF-4 DATA SELECTORS/MULTIPLEXERS
WITH 3-STATE OUTPUTS
SDFS064A – D2032, MARCH 1987 – REVISED OCTOBER 1993
2–5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54F253
MIN
TYP
SN74F253
MIN
TYP
UNIT
MAX
MAX
VIK
VCC = 4.5 V,
II = –18 mA
IOH = – 1 mA
IOH = – 3 mA
IOH = – 1 mA to –3 mA
IOL = 20 mA
IOL = 24 mA
VO = 2.7 V
VO = 0.5 V
VI = 7 V
VI = 2.7 V
VI = 0.5 V
VO = 0
Condition A
–1.2
–1.2
V
VCC= 4 5 V
VCC = 4.5 V
2.5
3.4
2.5
3.4
VOH
2.4
3.3
2.4
3.3
V
VCC = 4.75 V,
2.7
VOL
VCC= 4 5 V
VCC = 4.5 V
0.3
0.5
V
0.35
0.5
IOZH
IOZL
II
IIH
IIL
IOS
ICCH
ICCL
ICCZ
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
50
50
μ
A
μ
A
mA
μ
A
mA
–50
–50
0.1
0.1
20
20
– 0.6
– 0.6
–60
–150
–60
–150
mA
VCC = 5.5 V,
See Note 2
5 5 V
11.5
16
11.5
16
Condition B
Condition C
16
16
23
23
16
16
23
23
mA
All typical values are at VCC = 5 V, TA = 25
°
C.
Not more than one output should be shorted at a time, and the duration of the short circuit should not exceed one second.
NOTE 2: ICC is measured with the outputs open under the following conditions:
A. Inputs A, B, 1C3, and 2C3 at 4.5 V, other inputs grounded
B. All inputs grounded
C. Inputs 1G and 2G at 4.5 V, other inputs grounded
switching characteristics (see Note 3)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 5 V,
CL = 50 pF,
R1 = 500
,
R2 = 500
,
TA = 25
°
C
′
F253
MIN
3.7
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
R1 = 500
,
R2 = 500
,
TA = MIN to MAX§
SN54F253
MIN
MAX
2.7
15
UNIT
SN74F253
MIN
3.7
TYP
8.1
MAX
11.5
MAX
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
A or B
Any Y
13
ns
2.2
6.1
9
1.7
11
2.2
10
Any C
Any Y
2.2
5.1
7
1.7
9
2.2
8
ns
1.7
4.1
6
1.7
8
1.7
7
G
Any Y
2.2
5.6
8
1.7
10
2.2
9
ns
2.2
5.6
8
1.7
10
2.2
9
G
Any Y
1.2
3.3
5
1.2
6.5
1.2
6
ns
1.2
4
6
1.2
8
1.2
7
§For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
NOTE 3: Load circuit and waveforms are shown in Section 1.
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