CD40160BMS Datasheet, PDF (1/13 Pages) Intersil Corporation – CMOS Synchronous Programmable 4-Bit Counters

CD40160BMS, CD40161BMS, CD40162BMS,
CD40163BMS
December 1992
File Number 3358
CMOS Synchronous Programmable 4-Bit
Counters
CD40160BMS, CD40161BMS, CD40162BMS and
CD40163BMS are 4-bit synchronous programmable
counters. The CLEAR function of the CD40162BMS and
CD40163BMS is synchronous and a low level at the CLEAR
input sets all four outputs low on the next positive CLOCK
edge. The CLEAR function of the CD40160BMS and
CD40161BMS is asychronous and a low level at the CLEAR
input sets all four outputs low regardless of the state of the
CLOCK, LOAD, or ENABLE inputs. A low level at the LOAD
input disables the counter and causes the output to agree
with the setup data after the next CLOCK pulse regardless of
the conditions of the ENABLE inputs.
The carry look-ahead circuitry provides for cascading counters
for n-bit synchronous applications without additional gating.
Instrumental in accomplishing this function are two count-enable
inputs and a carry output (COUT). Counting is enabled when
both PE and TE inputs are high. The TE input is fed forward to
enable COUT. This enabled output produces a positive output
pulses with a duration approximately equal to the positive portion
of the Q1 output. This positive overflow carry pulse can be used
to enable successive cascaded stages. Logic transitions at the
PE or TE inputs may occur when the clock is either high or low.
The CD40160BMS through CD40163BMS types are functionally
equivalent to and pin-compatible with the TTL counter series
74LS160 through 74LS163 respectively.
The CD40160BMS, CD40161BMS, CD40162BMS and
CD40163BMS are supplied in these 16 lead outline packages:
Braze Seal DIP
Frit Seal DIP
CD40160 CD40161 CD40162 CD40163
H4W
H4X
H4X
H4W
H1F
H1F
H1L
H1F
Ceramic Flatpack H6P
H6W
H6P
H6W
Pinout
CD40160BMS, CD40161BMS, CD40162BMS, CD40163BMS
TOP VIEW
CLEAR 1
CLOCK 2
P1 3
P2 4
P3 5
P4 6
PE 7
VSS 8
16 VDD
15 CARRY OUT
14 Q1
13 Q2
12 Q3
11 Q4
10 TE
9 LOAD
Features
• High-Voltage Types (20V Rating)
• CD40160BMS Decade with Asynchronous Clear
• CD40161BMS Binary with Asynchronous Clear
• CD40162BMS Decade with Synchronous Clear
• CD40163BMS Binary with Synchronous Clear
• Internal Look-Ahead for Fast Counting
• Carry Output for Cascading
• Synchronously Programmable
• Clear Asynchronous Input (CD40160BMS, CD40161BMS)
• Clear Synchronous Input (CD40162BMS, CD40163BMS)
• Synchronous Load Control Input
• Low Power TTL Compatibility
• Standardized Symmetrical Output Characteristics
• 100% Tested for Quiescent Current at 20V
• Maximum Input Current of 1µA at 18V Over Full Package
Temperature Range; 100nA at 18V and +25^oC
• Noise Margin (Over Full Package Temperature Range):
- 1V at VDD = 5V
- 2V at VDD = 10V
- 2.5V at VDD = 15V
• 5V, 10V and 15V Parametric Ratings
• Meets All Requirements of JEDEC Tentative Standard No. 13B,
“Standard Specifications for Description of ‘B’ Series CMOS
Devices”
Applications
• Programmable Binary and Decade Counting
• Counter Control/Timers
• Frequency Dividing
Functional Diagram
7
PE
10
TE
1
CLEAR
9
LOAD
2
CLOCK
3
P1
4
P2
5
P3
VDD = 16
6
P4
VSS = 8
14
Q1
13
Q2
12
Q3
11
Q4
15
CARRY
OUT
4-1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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