The MC10136 is a high speed synchronous counter that can count up, count
down, preset, or stop count at frequencies exceeding 100 MHz. The flexibility of
this device allows the designer to use one basic counter for most applications,
and the synchronous count feature makes the MC10136 suitable for either
computers or instrumentation.
Three control lines (S1, S2, and Carry In
the counter. Lines S1 and S2 determine one of four operations; preset
(program), increment (count up), decrement (count down), or hold (stop count).
Note that in the preset mode a clock pulse is necessary to load the counter, and
the information present on the data inputs (D0, D1, D2, and D3) will be entered
into the counter. Carry Out
goes low on the terminal count, or when the counter
is being preset.
This device is not designed for use with gated clocks. Control is via S1 and
S2.
4. To preserve reliable performance, the MC10136 (plastic packaged device only) is to be operated in ambient temperatures above 70°C only
when 500lfpm blown air or equivalent heat sinking is provided.
4. To preserve reliable performance, the MC10136 (plastic packaged device only) is to be operated in ambient temperatures above 70°C only
when 500lfpm blown air or equivalent heat sinking is provided.
Each MECL 10,000 series circuit has been designed to meet the dc specifications shown in the test table, after thermal equilibrium has been
established. The circuit is in a test socket or mounted on a printed circuit board and transverse air flow greater than 500 linear fpm is maintained.
Outputs are terminated through a 50-ohm resistor to –2.0 volts. Test procedures are shown for only one gate. The other gates are tested in the
same manner.
MOTOROLAMECL Data
3–30
DL122 — Rev 6
Page 5
SWITCHING TIME TEST CIRCUIT AND WAVEFORMS @ 25°C
NOTE:
t
is the minimum time before the positive
setup
transition of the clock pulse (C) that information must
be present at the input D or S.
t
is the minimum time after the positive tran-
hold
sition of the clock pulse (C) that information must
remain unchanged at the input D or S.
INPUT PULSE
Clock
Q Output
D or S
T+ = T– = 2.0
(20 TO 80%)
50%
t
C+Q+
80%
50%
20%
t
Q+
C
Q
50%
t
hold H
t
setup H
50%
±
0.2 NS
t
C+Q–
t
Q–
CLOCK
INPUT
+1.11 V
+0.31 V
t
hold L
t
setup L
COAX
MC10136
V
= V
V
IN
TP
CC1
25 µF
in
VEE = –3.2 VDC
+1.11 V
+0.31 V
50-ohm termination to ground located in each scope channel input.
All input and output cables to the
scope are equal lengths of 50-ohm
coaxial cable. Wire length should be
< 1/4 inch from TPin to input pin and
TP
Unused outputs are connected to a
50-ohm resistor to ground.
= +2.0 VDC
CC2
16
1
C
Q0
IN
C
Q1
D0
D1
Q2
D2
D3
Q3
S1
C
S2
OUT
8
to output pin.
out
0.1
0.1
V
OUT
µ
F
µ
F
COAX
TP
out
DL122 — Rev 6
CARRY IN SET UP AND HOLD TIMES
Carry in
t
t
set (L)
hold (L)
C
3–31MOTOROLAMECL Data
t
set (N)
t
hold (N)
Page 6
MC10136
APPLICATIONS INFORMATION
To provide more than four bits of counting capability
several MC10136 counters may be cascaded. The Carry
In input overrides the clock when the counter is either in
the increment mode or the decrement mode of operation.
This input allows several devices to be cascaded in a fully
synchronous multistage counter as illustrated in Figure 1.
The carry is advanced between stages as shown with no
external gating. The Carry In
open. The system clock is common to all devices.
The various operational modes of the counter make it
useful for a wide variety of applications. If used with MECL
III devices, prescalers with input toggle frequencies in
excess of 300 MHz are possible. Figure 2 shows such a
prescaler using the MC10136 and MC1670. Use of the
MC10231 in place of the MC1670 permits 200 MHz
operation.
The MC10136 may also be used as a programmable
counter. The configuration of Figure 3 requires no
additional gates, although maximum frequency is limited
to about 50 MHz. The divider modulus is equal to the
program input plus one (M = N + 1), therefore, the counter
will divide by a modulus varying from 1 to 16.
A second programmable configuration is also illustrated
in Figure 4. A pulse swallowing technique is used to speed
the counter operation up to 1 10 MHz typically . The divider
modulus for this figure is equal to the program input (M =
N). The minimum modulus is 2 because of the pulse
swallowing technique, and the modulus may vary from 2
to 15. This programmable configuration requires an
additional gate, such as 1/2MC10109 and a flip-flop such
as 1/2MC10131.
System
Clock
LSB
Q0 Q1 Q2 Q3
C
in
C
NOTE: S1 and S2 are set either for increment or decrement operation.
1. DATUMS –L–, –M–, AND –N– DETERMINED
WHERE TOP OF LEAD SHOULDER EXITS PLASTIC
BODY AT MOLD PARTING LINE.
2. DIMENSION G1, TRUE POSITION TO BE
MEASURED AT DA TUM –T–, SEATING PLANE.
3. DIMENSIONS R AND U DO NOT INCLUDE MOLD
FLASH. ALLOWABLE MOLD FLASH IS 0.010 (0.250)
PER SIDE.
4. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
5. CONTROLLING DIMENSION: INCH.
6. THE PACKAGE TOP MAY BE SMALLER THAN THE
PACKAGE BOTTOM BY UP TO 0.012 (0.300).
DIMENSIONS R AND U ARE DETERMINED AT THE
OUTERMOST EXTREMES OF THE PLASTIC BODY
EXCLUSIVE OF MOLD FLASH, TIE BAR BURRS,
GATE BURRS AND INTERLEAD FLASH, BUT
INCLUDING ANY MISMATCH BETWEEN THE TOP
AND BOTTOM OF THE PLASTIC BODY.
7. DIMENSION H DOES NOT INCLUDE DAMBAR
PROTRUSION OR INTRUSION. THE DAMBAR
PROTRUSION(S) SHALL NOT CAUSE THE H
DIMENSION TO BE GREATER THAN 0.037 (0.940).
THE DAMBAR INTRUSION(S) SHALL NOT CAUSE
THE H DIMENSION TO BE SMALLER THAN 0.025
(0.635).
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty , representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation consequential or incidental damages. “T ypical” parameters which may be provided in Motorola
data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals”
must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of
others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other
applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury
or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola
and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees
arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that
Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal
Opportunity/Affirmative Action Employer.
How to reach us:
USA/EUROPE/Locations Not Listed: Motorola Literature Distribution;JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, 6F Seibu–Butsuryu–Center,
P.O. Box 5405, Denver, Colorado 80217. 303–675–2140 or 1–800–441–24473–14–2 Ta tsumi Koto–Ku, Tokyo 135, Japan. 81–3–3521–8315
Mfax: RMFAX0@email.sps.mot.com – TOUCHT ONE 602–244–6609ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park,
INTERNET: http://Design–NET .com51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298
MOTOROLAMECL Data
3–34
*MC10136/D*
◊
MC10136/D
DL122 — Rev 6
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