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Motorola Electronic Components Datasheet

MC10H645 Datasheet

1:9 TTL Clock Driver

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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
1:9 TTL Clock Driver
The MC10H645 is a single supply, low skew, TTL I/O 1:9 Clock Driver.
Devices in the Motorola H600 clock driver family utiize the 28–lead PLCC
for optimal power and signal pin placement.
The device features a 24mA TTL ouput stage with AC performance
specified into a 50pF load capacitance. A 2:1 input mux is provided on
chip to allow for distributing both system and diagnostic clock signals or
designing clock redundancy into a system. With the SEL input held LOW
the DO input will be selected, while the D1 input is selected when the SEL
input is forced HIGH.
MC10H645
1:9 TTL
CLOCK DRIVER
Low Skew Typically 0.65ns Within Device
Guaranteed Skew Spec 1.25ns Part–to–Part
Input Clock Muxing
Differential ECL Internal Design
Single Supply
Extra TTL and ECL Power/Ground Pins
PIN NAMES
PIN
GT
VT
VE
GE
Dn
Q0 – Q8
SEL
TTL
Inputs
D0
D1
SEL
FUNCTION
TTL Ground (0V)
TTL VCC (+5.0V)
ECL VCC (+5.0V)
ECL Ground (0V)
TTL Signal Input
TTL Signal Outputs
TTL Mux Select
LOGIC DIAGRAM
TTL Outputs
Q0
MUX
D0
D0 Q
D1 Q
D1
SS
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
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 NC
Q5 27
17 D0
VT 28
16 D1
Q4 1
VT 2
15 VE
14 SEL
Q3 3
13 GE
GT 4
12 NC
5 6 7 8 9 10 11
GT Q2 VT Q1 VT Q0 GT
9/96
© Motorola, Inc. 1996
2–1
REV 4


Motorola Electronic Components Datasheet

MC10H645 Datasheet

1:9 TTL Clock Driver

No Preview Available !

MC10H645
PIN DESCRIPTIONS
Pin Symbol
1 Q4
2 VT
3 Q3
4 GT
5 GT
6 Q2
7 VT
8 Q1
9 VT
10 Q0
11 GT
12 NC
13 GE
14 SEL
Description
Signal Output (TTL)
TTL VCC (+5.0V)
Signal Output (TTL)
TTL Ground (0V)
TTL Ground (0V)
Signal Output (TTL)
TTL VCC (+5.0V)
Signal Output (TTL)
TTL VCC (+5.0V)
Signal Output (TTL)
TTL Ground (0V)
No Connection
ECL Ground
Select Input (TTL)
Pin Symbol
Description
15 VE ECL VCC (+5.0V)
16 D1 Signal Input (TTL)
17 D0 Signal Input (TTL)
18 NC No Connection
19 GT TTL Ground (0V)
20 Q8 Signal Output (TTL)
21 VT TTL VCC (+5.0V)
22 Q7 Signal Output (TTL)
23 VT TTL VCC (+5.0V)
24 Q6 Signal Output (TTL)
25 GT TTL Ground (0V)
26 GT TTL Ground (0V)
27 Q5 Signal Output (TTL)
28 VT TTL VCC (+5.0V)
ABSOLUTE RATINGS (Do not exceed)
Symbol
VE (ECL)
VT (TTL)
VI (TTL)
Vout
Tstg
Tamb
Characteristic
Power Supply Voltage
Power Supply Voltage
Input Voltage
Disabled 3–State Output
Storage Temperature
Operating Temperature
Value
–0.5 to +7.0
–0.5 to +7.0
–0.5 to +7.0
0.0 to VT
–65 to 150
0.0 to +85
Unit
V
V
V
V
°C
°C
TRUTH TABLE
D0
L
H
X
X
D1
X
X
L
H
SEL
L
L
H
H
Q
L
H
L
H
DC CHARACTERISTICS (VT = VE = 5.0V ±5%)
Symbol
Characteristic
0°C
Min Max
25°C
Min Max
85°C
Min Max
Unit
Condition
IEE
ICCH
ICCL
VOH
VOL
IOS
Power Supply Current
ECL
TTL
Output HIGH Voltage
Output LOW Voltage
Output Short Circuit Current
30 30 30 mA VE Pin
30 30 30 mA Total all VT pins
35 35 35 mA
2.5 2.5 2.5
2.0 2.0 2.0
V IOH = –3.0mA
IOH = –15mA
0.5 0.5 0.5 V IOL = 24mA
–100 –225 –100 –225 –100 –225 mA VOUT = 0V
MOTOROLA
2–2 MECL Data
DL122 — Rev 6


Part Number MC10H645
Description 1:9 TTL Clock Driver
Maker Motorola
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MC10H645 Datasheet PDF






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