MC100LVEL29 Datasheet, PDF (1/3 Pages) ON Semiconductor – Dual Differential Data and Clock D Flip-Flop With Set and Reset

MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Dual Differential Data and Clock
D Flip-Flop With Set and Reset
MC100LVEL29
MC100EL29
The MC100LVEL29 is a dual master–slave flip flop. The device
features fully differential Data and Clock inputs as well as outputs. The
MC100EL29 is pin and functionally equivalent to the MC100LVEL29 but
is specified for operation at the standard 100E ECL voltage supply. A VBB
output is provided for AC coupling, refer to the interfacing section of the
ECLinPS Data Book (DL140) for more information on AC coupling ECL
signals. Data enters the master latch when the clock is LOW and
transfers to the slave upon a positive transition on the clock input.
The differential inputs have special circuitry which ensures device
stability under open input conditions. When both differential inputs are left
open the D input will pull down to VEE and the D input will bias around
VCC/2. The outputs will go to a defined state, however the state will be
random based on how the flip flop powers up.
Both flip flops feature asynchronous, overriding Set and Reset inputs.
Note that the Set and Reset inputs cannot both be HIGH simultaneously.
20
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DW SUFFIX
PLASTIC SOIC PACKAGE
CASE 751D–04
• 1100MHz Flip–Flop Toggle Frequency
• 20–lead SOIC Package
• 580ps Propagation Delays
TRUTH TABLE
Logic Diagram and Pinout: 20-Lead SOIC (Top View)
R S D CLK Q
Q
R0 VCC Q0 Q0 S0 S1 VCC Q1 Q1 VEE
20 19 18 17 16 15 14 13 12 11
Q
Q
R
S
D
CLK
Q
Q
S
R
D
CLK
LLL
L LH
HLX
LHX
HHX
Z
L
H
Z
H
L
X
L
H
X
H
L
X Undef Undef
Z = LOW to HIGH Transition
PIN NAMES
1 2 3 4 5 6 7 8 9 10
D0 D0 CLK0 CLK0 VBB D1 D1 CLK1 CLK1 R1
MC100LVEL29
DC CHARACTERISTICS (VEE = –3.0V to –3.8V; VCC = GND)
Pins
D0–D1
R0–R1
CLK0–CLK1
S0–S1
Function
Data Inputs
Reset Inputs
Clock Inputs
Set Inputs
–40°C
0°C
25°C
85°C
Symbol
Characteristic
Min Typ Max Min Typ Max Min Typ Max Min Typ Max Unit
IEE
VBB
IIH
IIL
Power Supply Current
35 50
35 50
35 50
35 50 mA
Output Reference Voltage
–1.38
–1.26 –1.38
–1.26 –1.38
–1.26 –1.38
–1.26 V
Input HIGH Current
150
150
150
150 µA
Input LOW Current Dn Inputs 0.5
0.5
0.5
0.5
µA
Dn Inputs –300
–300
–300
–300
7/95
© Motorola, Inc. 1996
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