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參數(shù)資料
| 型號： | 933714020652 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 計數(shù)器 |
| 英文描述： | HCT SERIES, ASYN NEGATIVE EDGE TRIGGERED 14-BIT UP BINARY COUNTER, PDSO16 |
| 封裝： | SOT-109, SO-16 |
| 文件頁數(shù)： | 9/16頁 |
| 文件大?。?/td> | 167K |
| 代理商： | 933714020652 |
December 1990
2
Philips Semiconductors
Product specication
14-stage binary ripple counter with oscillator
74HC/HCT4060
FEATURES
All active components on chip
RC or crystal oscillator configuration
Output capability: standard (except for RTC and CTC)
ICC category: MSI
GENERAL DESCRIPTION
The 74HC/HCT4060 are high-speed Si-gate CMOS
devices and are pin compatible with “4060” of the “4000B”
series. They are specified in compliance with JEDEC
standard no. 7A.
The 74HC/HCT4060 are 14-stage ripple-carry
counter/dividers and oscillators with three oscillator
terminals (RS, RTC and CTC), ten buffered outputs (Q3 to
Q9 and Q11 to Q13) and an overriding asynchronous
master reset (MR).
The oscillator configuration allows design of either RC or
crystal oscillator circuits. The oscillator may be replaced by
an external clock signal at input RS. In this case keep the
other oscillator pins (RTC and CTC) floating.
The counter advances on the negative-going transition of
RS. A HIGH level on MR resets the counter (Q3 to Q9 and
Q11 to Q13 = LOW), independent of other input conditions.
In the HCT version, the MR input is TTL compatible, but
the RS input has CMOS input switching levels and can be
driven by a TTL output by using a pull-up resistor to VCC.
QUICK REFERENCE DATA
GND = 0 V; Tamb =25 °C; tr =tf = 6 ns
Notes
1. CPD is used to determine the dynamic power dissipation (PD in W):
PD =CPD × VCC2 × fi + ∑ (CL × VCC2 × fo) where:
fi = input frequency in MHz
fo = output frequency in MHz
∑ (CL × VCC2 × fo) = sum of outputs
CL = output load capacitance in pF
VCC = supply voltage in V
2. For HC the condition is VI = GND to VCC
For HCT the condition is VI = GND to VCC 1.5 V
3. For formula on dynamic power dissipation see next pages.
ORDERING INFORMATION
See
“74HC/HCT/HCU/HCMOS Logic Package Information”.
SYMBOL
PARAMETER
CONDITIONS
TYPICAL
UNIT
HC
HCT
tPHL/ tPLH
propagation delay
CL = 15 pF; VCC =5 V
RS to Q3
31
ns
Qn to Qn+1
66ns
tPHL
MR to Qn
17
18
ns
fmax
maximum clock frequency
87
88
MHz
CI
input capacitance
3.5
pF
CPD
power dissipation capacitance per package
notes 1, 2 and 3
40
pF
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