SY10H350 Datasheet, PDF (1/4 Pages) Micrel Semiconductor – PECL-to-TTL TRANSLATOR

PECL-to-TTL
TRANSLATOR
SY10H350
FINAL
FEATURES
s Single 5V power supply
s Propagation delay, 3.5ns typical
s Fully compatible with Motorola MC10H350
s Available in 20-pin PLCC package
BLOCK DIAGRAM
12
4
3
5
7
9
8
14
13
15
17
19
18
V_CC (+5 VDC) = Pins 2 and 20; GND = Pin 10
DESCRIPTION
The SY10H350 consists of 4 translators with differential
inputs and TTL outputs. The 3-state outputs can be
disabled by applying a HIGH TTL logic level on the
common OE input.
The SY10H350 is designed to be used primarily in
systems incorporating both ECL and TTL logic operating
off a common power supply. The separate V_CC power
pins are not connected internally and thus isolate the
noisy TTL V_CC runs from the relatively quiet ECL V_CC
runs on the printed circuit board. The differential inputs
allow the H350 to be used as an inverting or noninverting
translator, or a differential line receiver. The H350 can
also drive CMOS with the addition of a pullup resistor.
PIN CONFIGURATION
18 17 16 15 14
Q2 19
VCCT 20
NC ₁
VCCE 2
Q0 3
Top View
PLCC
J20-1
13 Q3
12 /OE
11 _NC
10 GND
9 Q1
456 7 8
PIN NAMES
Pin
D₀ – D₃
/D₀ – /D₃
Q₀ – Q₃
V_CCE
V_CCT
GND
/OE
Function
True PECL Inputs
Inverted PECL Inputs
TTL Outputs
PECL V_CC (5.0V)
TTL V_CC (5.0V)
Ground
Output Enable
Rev.: A Amendment: /1
1
Issue Date: December 2000