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74HC393N Datasheet(PDF) 10 Page - NXP Semiconductors

Part No. 74HC393N
Description  Dual 4-bit binary ripple counter
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Maker  NXP [NXP Semiconductors]
Homepage  http://www.nxp.com
Logo NXP - NXP Semiconductors

74HC393N Datasheet(HTML) 10 Page - NXP Semiconductors

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74HC_HCT393
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2013. All rights reserved.
Product data sheet
Rev. 4 — 16 May 2013
10 of 21
NXP Semiconductors
74HC393; 74HCT393
Dual 4-bit binary ripple counter
[1]
tpd is the same as tPLH and tPHL.
[2]
tt is the same as tTHL and tTLH.
[3]
CPD is used to determine the dynamic power dissipation (PD in W).
PD =CPD  VCC2  fi  N+ (CL  VCC2  fo) where:
fi = input frequency in MHz;
fo = output frequency in MHz;
CL = output load capacitance in pF;
VCC = supply voltage in V;
N = number of inputs switching;
(C
L  VCC
2
 f
o) = sum of outputs.
10.1 Waveforms
CPD
power
dissipation
capacitance
CL =50pF;f=1 MHz;
VI =GND to VCC
[3]
-25
-
-
-
-
-
pF
Table 7.
Dynamic characteristics …continued
Voltages are referenced to GND (ground = 0 V); CL = 50 pF unless otherwise specified; for test circuit see Figure 11.
Symbol Parameter
Conditions
25
C
40 C to +85 C 40 C to +125 C Unit
Min
Typ
Max
Min
Max
Min
Max
Measurement points are given in Table 8.
Fig 9.
Propagation delays clock (nCP) to output (nQx), the output transition times and the maximum clock
frequency
001aad537
VM
VM
tPLH
tTLH
tTHL
tPHL
input nCP
VI
GND
VOH
VOL
1/fmax
output nQx
Table 8.
Measurement points
Type
Input
Output
VM
VM
74HC393
0.5VCC
0.5VCC
74HCT393
1.3 V
1.3 V


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