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SY10H646L_06 Datasheet, PDF (1/7 Pages) Micrel Semiconductor – 3.3V SINGLE SUPPLY OCTAL PECL/TTL-TO-TTL
Micrel, Inc.
3.3V SINGLE SUPPLY
OCTAL PECL/TTL-TO-TTL
Precision Edge®
Precision ESdY1g0He6®46L
SY10SHY610406H6L46L
SY100H646L
FEATURES
s 3.3V power supply
s PECL/TTL-to-TTL version of popular ECLinPS
E111AE/LE
s Guaranteed low skew specification
s Three-state enable
s Differential internal design
s VBB output for single-ended operation
s Extra TTL and ECL power/ground pins
s Choice of ECL compatibility: 10K or 100K
s Matched high and low output impedance
s Available in 28-pin PLCC package
BLOCK DIAGRAM
EN
Q0
Q1
Q2
Q3
TCLK
ECLK
ECLK
Q4
Precision Edge®
DESCRIPTION
The SY10/100H646L are single supply, low skew
translating 1:8 clock drivers. Devices in the Micrel H600
translator series utilize the 28-lead PLCC for optimal
power pinning, signal flow-through and electrical
performance. The single supply H646L is similar to the
HA643 which is a dual supply 1:8 version of the same
function.
These devices feature a 24mA TTL output stage, with
AC performance specified into a 20pF load capacitance.
The 10H version is compatible with 10K ECL logic
levels. The 100H version is compatible with 100K levels.
PIN NAMES
Pin
OGND
OVT
IGND
IVT
VEE
VCCE
ECLK, ECLK
VBB
Q0–Q7
EN
TCLK
Function
TTL Output Ground (0V)
TTL Output VCC (+3.0V)
Internal TTL GND (0V)
Internal TTL VCC (+3.0V)
ECL VEE (0V)
ECL Ground (+3.0V)
Differential Signal Input (PECL)
VBB Reference Output
Signal Outputs (TTL)
Three-State Enable Input (TTL)
Signal Input (TTL)
Q5
Q6
VBB
Q7
Precision Edge is a registered trademark of Micrel, Inc.
M9999-032906
hbwhelp@micrel.com or (408) 955-1690
1
Rev.: F Amendment: /0
Issue Date: March 2006