參數(shù)資料
型號(hào): 933781130602
廠商: NXP SEMICONDUCTORS
元件分類: 計(jì)數(shù)器
英文描述: F/FAST SERIES, SYN POSITIVE EDGE TRIGGERED 8-BIT BIDIRECTIONAL BINARY COUNTER, PDIP20
封裝: 0.300 INCH, PLASTIC, MS-001, SOT-146-1, DIP-20
文件頁(yè)數(shù): 5/6頁(yè)
文件大小: 124K
代理商: 933781130602
December 1990
5
Philips Semiconductors
Product specication
Quad buffer/line driver; 3-state
74HC/HCT125
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: bus driver
ICC category: MSI
Note to HCT types
The value of additional quiescent supply current (
ICC) for a unit load of 1 is given in the family specifications.
To determine
ICC per input, multiply this value by the unit load coefficient shown in the table below.
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; tr =tf = 6 ns; CL =50pF
INPUT
UNIT LOAD COEFFICIENT
nA, nOE
1.00
SYMBOL
PARAMETER
Tamb (°C)
UNIT
TEST CONDITIONS
74HCT
VCC
(V)
WAVEFORMS
+25
40 to +85 40 to +125
min. typ. max. min. max.
min.
max.
tPHL/ tPLH propagation delay
nA to nY
15
25
31
38
ns
4.5
Fig.6
tPZH/ tPZL 3-state output enable time
nOE to nY
15
28
35
42
ns
4.5
Fig.7
tPHZ/ tPLZ 3-state output disable time
nOE to nY
15
25
31
38
ns
4.5
Fig.7
tTHL/ tTLH
output transition time
5
12
15
18
ns
4.5
Fig.6
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