MC10E016 Datasheet, PDF (1/8 Pages) ON Semiconductor – 8-BIT SYNCHRONOUS BINARY UP COUNTER

MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
8ĆBit Synchronous Binary
Up Counter
MC10E016
MC100E016
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.
8-BIT SYNCHRONOUS
BINARY UP COUNTER
• 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 VEE Range of – 4.2V to – 5.46V
• 75kΩ Input Pulldown Resistors
Pinout: 28-Lead PLCC (Top View)
PE CE P7 P6 P5 VCCO TC
25 24 23 22 21 20 19
MR 26
18 Q7
CLK 27
17 Q6
TCLD 28
16 VCC
FN SUFFIX
PLASTIC PACKAGE
CASE 776-02
FUNCTION TABLE
CE PE TCLD MR CLK
XL
X
L
Z
LH
L
LZ
LH
H
L
Z
HH
X
L
Z
XX
X
L ZZ
XX
X
HX
Z = clock pulse (low to high);
ZZ = clock pulse (high to low)
Function
Load Parallel (Pn to Qn)
Continuous Count
Count; Load Parallel on TC = LOW
Hold
Masters Respond, Slaves Hold
Reset (Qn : = LOW, TC : = HIGH)
VEE ¹
15 Q5
NC 2
PIN NAMES
14 VCCO
Pin
P0 3
13 Q4
P1 4
12 Q3
5 6 7 8 9 10 11
P2 P3 P4 VCCO Q0 Q1 Q2
P0 – P7
Q0 – Q7
CE
PE
MR
CLK
TC
TCLD
Function
Parallel Data (Preset) Inputs
Data Outputs
Count Enable Control Input
Parallel Load Enable Control Input
Master Reset
Clock
Terminal Count Output
TC-Load Control Input
* All VCC and VCCO pins are tied together on the die.
12/93
© Motorola, Inc. 1996
2–1
REV 2