74LV4040 데이터 시트보기 (PDF) - Philips Electronics
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74LV4040 Datasheet PDF : 14 Pages
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Philips Semiconductors
12-stage binary ripple counter
Product specification
74LV4040
FEATURES
• Optimized for Low Voltage applications: 1.0 to 5.5V
• Accepts TTL input levels between VCC = 2.7V and VCC = 3.6V
• Typical VOLP (output ground bounce) t 0.8V @ VCC = 3.3V,
Tamb = 25°C
• Typical VOHV (output VOH undershoot) u 2V @ VCC = 3.3V,
Tamb = 25°C
• Frequency dividing circuits
• Time delay circuits
• Control counters
• Output capability: standard
• ICC category: MSI
DESCRIPTION
The 74LV4040 is a low–voltage Si–gate CMOS device and is pin
and function compatible with 74HC/HCT4040.
The 74LV4040 is a 12-stage binary ripple counter with a click input
(CP), an overriding asynchronous master reset input (MR) and
twelve fully buffered parallel outputs (Q0 to Q11). The counter is
advanced on the HIGH-to-LOW transition of CP. A HIGH on MR
clears all counter stages and forces all outputs LOW, independent of
the state of CP.
Each counter stage is a static toggle flip-flop.
QUICK REFERENCE DATA
GND = 0V; Tamb = 25°C; tr =tf v2.5 ns
SYMBOL
PARAMETER
CONDITIONS
tPHL/tPLH
Propagation delay
CP to Q0
Qn to Qn+1
MR to Qn
CL = 15pF
VCC = 3.3V
fmax
Maximum clock frequency
CI
Input capacitance
CPD
Power dissipation capacitance per gate
Notes 1 and 2
NOTES:
1. CPD is used to determine the dynamic power dissipation (PD in µW)
PD = CPD VCC2 x fi )S (CL VCC2 fo) where:
fi = input frequency in MHz; CL = output load capacity in pF;
fo = output frequency in MHz; VCC = supply voltage in V;
S (CL VCC2 fo) = sum of the outputs.
2. The condition is VI = GND to VCC
TYPICAL
12
7
16
100
3.5
30
ORDERING INFORMATION
PACKAGES
16-Pin Plastic DIL
16-Pin Plastic SO
16-Pin Plastic SSOP Type II
16-Pin Plastic TSSOP Type I
TEMPERATURE RANGE OUTSIDE NORTH AMERICA
–40°C to +125°C
74LV4040 N
–40°C to +125°C
74LV4040 D
–40°C to +125°C
74LV4040 DB
–40°C to +125°C
74LV4040 PW
NORTH AMERICA
74LV4040 N
74LV4040 D
74LV4040 DB
74LV4040PW DH
UNIT
ns
MHz
pF
pF
PKG. DWG. #
SOT38-4
SOT109-1
SOT338-1
SOT403-1
1998 Jun 23
2
853-2075 19619
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