MC10H645FN

© Semiconductor Components Industries, LLC, 2015
April, 2015 − Rev. 7
1 Publication Order Number:
MC10H645/D
MC10H645
2:1:9 TTL Clock Driver
Description
The MC10H645 is a single supply, low skew, TTL I/O 2:1:9 Clock
Driver. Devices in the H600 clock driver family utilizes the PLCC−28
for optimal power and signal pin placement.
The device features a 24 mA TTL output stage with AC
performance specified into a 50 pF 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.
Features
Low Skew Typically 0.65 ns Within Device
Guaranteed Skew Spec 1.25 ns Part−to−Part
Input Clock Muxing
Differential ECL Internal Design
Single Supply
Extra TTL and ECL Power/Ground Pins
These Devices are Pb−Free and are RoHS Compliant*
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
PLCC
FN SUFFIX
CASE 776
MARKING DIAGRAM
www.
onsemi.com
See detailed ordering and shipping information in the package
dimensions section on page 4 of this data sheet.
ORDERING INFORMATION
MC10H645G
AWLYYWW
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
G = Pb−Free Package
MC10H645
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2
Figure 1. Logic Diagram
Q0
Figure 2. Pinout: 28−Lead PLCC
(Top View)
1
GT
Q5
VT
Q4
VT
Q3
GT
GT Q6 VT Q7 VT Q8 GT
Q2 VT Q1 VT Q0 GT
567891011
25 24 23 22 21 20 19
26
27
28
2
3
4
18
17
16
15
14
13
12
GT
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
Q
Q
SEL
S
S
D1
D0
TTL Inputs
TTL Outputs
D0
D0
D1
D1
MUX
NC
D0
D1
VE
SEL
GE
NC
Table 1. PIN NAMES
PIN FUNCTION
GT
VT
VE
GE
Dn
Q0 − Q8
SEL
TTL Ground (0 V)
TTL V
CC
(+5.0 V)
ECL V
CC
(+5.0 V)
ECL Ground (0 V)
TTL Signal Input
TTL Signal Outputs
TTL Mux Select
Table 2. PIN DESCRIPTIONS
Pin Symbol Description Pin Symbol Description
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Q4
VT
Q3
GT
GT
Q2
VT
Q1
VT
Q0
GT
NC
GE
SEL
Signal Output (TTL)
TTL V
CC
(+5.0 V)
Signal Output (TTL)
TTL Ground (0 V)
TTL Ground (0 V)
Signal Output (TTL)
TTL V
CC
(+5.0 V)
Signal Output (TTL)
TTL V
CC
(+5.0 V)
Signal Output (TTL)
TTL Ground (0 V)
No Connection
ECL Ground
Select Input (TTL)
15
16
17
18
19
20
21
22
23
24
25
26
27
28
VE
D1
D0
NC
GT
Q8
VT
Q7
VT
Q6
GT
GT
Q5
VT
ECL V
CC
(+5.0 V)
Signal Input (TTL)
Signal Input (TTL)
No Connection
TTL Ground (0 V)
Signal Output (TTL)
TTL V
CC
(+5.0 V)
Signal Output (TTL)
TTL V
CC
(+5.0 V)
Signal Output (TTL)
TTL Ground (0 V)
TTL Ground (0 V)
Signal Output (TTL)
TTL V
CC
(+5.0 V)
Table 3. TRUTH TABLE
D0 D1 SEL Q
L
H
X
X
X
X
L
H
L
L
H
H
L
H
L
H
MC10H645
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Table 4. ABSOLUTE RATINGS (Do not exceed)
Symbol Characteristic Value Unit
VE (ECL) Power Supply Voltage −0.5 to +7.0 V
VT (TTL) Power Supply Voltage −0.5 to +7.0 V
VI (TTL) Input Voltage −0.5 to +7.0 V
V
out
Disabled 3−State Output 0.0 to V
T
V
T
stg
Storage Temperature −65 to 150 °C
T
amb
Operating Temperature 0.0 to +85 °C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
Table 5. DC CHARACTERISTICS (VT = VE = 5.0 V ±5%)
0°C 25°C 85°C
Symbol Characteristic Min Max Min Max Min Max Unit Condition
I
EE
Power Supply Current ECL 30 30 30 mA VE Pin
I
CCH
TTL 30 30 30 mA Total all VT pins
I
CCL
35 35 35 mA
V
OH
Output HIGH Voltage 2.5
2.0
2.5
2.0
2.5
2.0
V I
OH
= −3.0 mA
I
OH
= −15 mA
V
OL
Output LOW Voltage 0.5 0.5 0.5 V I
OL
= 24 mA
I
OS
Output Short Circuit Current −100 −225 −100 −225 −100 −225 mA V
OUT
= 0 V
NOTE: Device will meet the specifications after thermal equilibrium has been established when mounted in a test socket or printed circuit
board with maintained transverse airflow greater than 500 lfpm.
Table 6. TTL DC CHARACTERISTICS (VT = VE = 5.0 V ±5%)
0°C 25°C 85°C
Symbol Characteristic Min Max Min Max Min Max Unit Condition
V
IH
V
IL
Input HIGH Voltage
Input LOW Voltage
2.0
0.8
2.0
0.8
2.0
0.8
V
I
IH
Input HIGH Current 20
100
20
100
20
100
mA
V
IN
= 2.7 V
V
IN
= 7.0 V
I
IL
Input LOW Current −0.6 −0.6 −0.6 mA V
IN
= 0.5 V
V
OH
Output HIGH Voltage 2.5
2.0
2.5
2.0
2.5
2.0
V I
OH
= −3.0 mA
I
OH
= −24 mA
V
OL
Output LOW Voltage 0.5 0.5 0.5 V I
OL
= 24 mA
V
IK
Input Clamp Voltage −1.2 −1.2 −1.2 V I
IN
= −18 mA
I
OS
Output Short Circuit Current −100 −225 −100 −225 −100 −225 mA V
OUT
= 0 V
NOTE: Device will meet the specifications after thermal equilibrium has been established when mounted in a test socket or printed circuit
board with maintained transverse airflow greater than 500 lfpm.

MC10H645FN

Mfr. #:
Manufacturer:
ON Semiconductor
Description:
Clock Drivers & Distribution 1:9 TTL Clock Driver
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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