参数资料
型号: SN74ALS528DWR
厂商: TEXAS INSTRUMENTS INC
元件分类: 算术逻辑单元
英文描述: ALS SERIES, 12-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, PDSO16
封装: PLASTIC, SOIC-16
文件页数: 6/7页
文件大小: 104K
代理商: SN74ALS528DWR
SN54ALS526, SN54ALS527, SN54ALS528
SN74ALS526, SN74ALS527, SN74ALS528
FUSEPROGRAMMABLE IDENTITY COMPARATORS
SDAS051A JUNE 1984REVISED MAY 1986
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 77001
6
programing parameters
PARAMETER
MIN
MAX
UNIT
VIH
High-level input voltage
2
5.5
V
VIL
Low-level input voltage
0.8
V
VIHH
Program-pulse input voltage
11.5
12.5
V
VCC
Supply voltage
6.5
7.5
V
IIHH
Program-pulse input current
Pin (G low)
10
mA
IIHH
Program-pulse input current
G
1.24
mA
’ALS526
31
ICCHH
Supply current with VIHH applied
’ALS527
29
mA
’ALS528
26
tW
Pulse duration, program
10
50
s
tr
Rise time, program voltage
10
s
Test
Blow Fuse
Verify
VIH
VIL
VIHH
VIH
VIL
VIHH
VIL
VIH
VIL
90%
10%
90%
tw
tr
P
Inputs
Pn
G
P=Q
Don’t Care
Illustrated above is the following sequence:
NOTES: A. It is desired to program a particular input to recognize a high level input. With G low and all P inputs at VIL, the output is low if no
fuses are blown.
B. With G low and all P inputs at VIH, the output is high unless all fuses are blown.
C. When the desired input is taken to VIHH, the output goes low if the fuse is intact.
D. G is pulsed to VIHH blowing the desired fuse.
E. After G is low, output will be high indicating that the fuse is blown.
F. The programmed input returns to VIH, the output is high unless all fuses have been blown.
G. All P inputs are taken to VIL, the output is high if a fuse has been blown.
For the ’ALS527, P8 through P11 inputs must match the Q8 through Q11 inputs.
Figure 1. Programming Waveforms
相关PDF资料
PDF描述
SNJ54ALS526FK ALS SERIES, 16-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, CQCC20
SNJ54ALS527FK ALS SERIES, 12-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, CQCC20
SNJ54ALS568AFK ALS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL DECADE COUNTER, CQCC20
SNJ54ALS666FK ALS SERIES, 8-BIT DRIVER, TRUE OUTPUT, CQCC28
SNJ54ALS667FK ALS SERIES, 8-BIT DRIVER, INVERTED OUTPUT, CQCC28
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