MC10H641 Datasheet, PDF (1/8 Pages) ON Semiconductor – SINGLE SUPPLY PECL-TTL 1:9 CLOCK DISTRIBUTION CHIP

MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Single Supply PECL-TTL
1:9 Clock Distribution Chip
MC10H641
MC100H641
The MC10H/100H641 is a single supply, low skew translating 1:9 clock
driver. Devices in the Motorola H600 translator series utilize the 28–lead
PLCC for optimal power pinning, signal flow through and electrical
performance.
The device features a 24mA TTL output stage, with AC performance
specified into a 50pF load capacitance. A latch is provided on–chip. When
LEN is LOW (or left open, in which case it is pulled LOW by the internal
pulldown) the latch is transparent. A HIGH on the enable pin (EN) forces
all outputs LOW. Both the LEN and EN pins are positive ECL inputs.
The VBB output is provided in case the user wants to drive the device
with a single–ended input. For single–ended use the VBB should be
connected to the D input and bypassed with a 0.01µF capacitor.
The 10H version of the H641 is compatible with positive MECL 10H™
logic levels. The 100H version is compatible with positive 100K levels.
• PECL–TTL Version of Popular ECLinPS E111
• Low Skew
• Guaranteed Skew Spec
• Latched Input
• Differential ECL Internal Design
• VBB Output for Single–Ended Use
• Single +5V Supply
• Logic Enable
• Extra Power and Ground Supplies
• Separate ECL and TTL Supply Pins
SINGLE SUPPLY
PECL–TTL 1:9 CLOCK
DISTRIBUTION CHIP
FN SUFFIX
PLASTIC PACKAGE
CASE 776–02
Pinout: 28–Lead PLCC (Top View)
GT Q6 VT Q7 VT Q8 GT
25 24 23 22 21 20 19
GT 26
18 VBB
Q5 27
17 D
VT 28
16 D
Q4 ₁
VT 2
15 VE
14 LEN
Q3 3
13 GE
GT 4
12 EN
5 6 7 8 9 10 11
GT Q2 VT Q1 VT Q0 GT
MECL 10H is a trademark of Motorola, Inc.
11/93
© Motorola, Inc. 1996
2–1
PIN NAMES
Pins
GT, VT
GE, VE
D, D
VBB
Q0–Q8
EN
LEN
Function
TTL GND, TTL VCC
ECL GND, ECL VCC
Signal Input (Positive ECL)
VBB Reference Output
(Positive ECL)
Signal Outputs (TTL)
Enable Input (Positive ECL)
Latch Enable Input
(Positive ECL)
REV 3