SEMICONDUCTOR TECHNICAL DATA
2–1
REV 2
Motorola, Inc. 1996
12/93
The MC10E/100E016 is a high-speed synchronous, presettable,
cascadable 8-bit binary counter. Architecture and operation are the same
as the MC10H016 in the MECL 10H family , extended to 8-bits, as shown
in the logic symbol.
The counter features internal feedback of TC
, gated by the TCLD
(terminal count load) pin. When TCLD is LOW (or left open, in which case
it is pulled LOW by the internal pull-downs), the TC
feedback is disabled,
and counting proceeds continuously, with TC
going LOW to indicate an
all-one state. When TCLD is HIGH, the TC
feedback causes the counter
to automatically reload upon TC
= LOW, thus functioning as a
programmable counter. The Qn outputs do not need to be terminated for
the count function to operate properly. To minimize noise and power,
unused Q outputs should be left unterminated.
• 700MHz Min. Count Frequency
• 1000ps CLK to Q, TC
• Internal TC Feedback (Gated)
• 8-Bit
• Fully Synchronous Counting and TC Generation
• Asynchronous Master Reset
• Extended 100E V
EE
Range of – 4.2V to – 5.46V
• 75kΩ Input Pulldown Resistors
FUNCTION TABLE
CE PE TCLD MR CLK Function
X L X L Z Load Parallel (Pn to Qn)
L H L L Z Continuous Count
L H H L Z Count; Load Parallel on TC = LOW
H H X L Z Hold
X X X L ZZ Masters Respond, Slaves Hold
X X X H X Reset (Qn : = LOW, TC : = HIGH)
Z = clock pulse (low to high);
ZZ = clock pulse (high to low)
PIN NAMES
Pin Function
P0 – P
7
Parallel Data (Preset) Inputs
Q0– Q
7
Data Outputs
CE Count Enable Control Input
PE Parallel Load Enable Control Input
MR Master Reset
CLK Clock
TC Terminal Count Output
TCLD TC-Load Control Input
8-BIT SYNCHRONOUS
BINARY UP COUNTER
FN SUFFIX
PLASTIC PACKAGE
CASE 776-02
1
Pinout: 28-Lead PLCC (Top View)
MR
CLK
TCLD
V
EE
NC
P
0
P
1
26
27
28
2
3
4
25 24 23 22 21 20 19
18
17
16
15
14
13
12
115 6 7 8 9 10
PE
CE P7P6P5V
CCO
TC
Q
7
Q
6
V
CC
Q
5
Q
4
Q
3
P2P3P4V
CCOQ0Q1Q2
V
CCO
* All VCC and V
CCO
pins are tied together on the die.