® MOTOROLA
Specifications and Applications Information
M6800 CLOCK GENERATOR
Intended to supply the non-overlapping t/>1...
® MOTOROLA
Specifications and Applications Information
M6800 CLOCK GENERATOR
Intended to supply the non-overlapping t/>1 and t/>2 clock signals required by the microprocessor, this clock generator is compatible with 1.0, 1.5, and 2.0 MHz versions of the MC6800. Both the oscillator and high capacitance driver elements are included along with numerous other logic accessory functions for easy system expansion.
Schottky technology is employed for high speed and PNP-buffered inputs are employed for NMOS compatibility. A single +5 V power supply, and a crystal or RC network for frequency determination are required.
Typical MPU System with Bus Extenders
GND +5 V
c:::J 4 x fo MPU
T
MC6875 MC6875A
M6800 TWO-PHASE CLOCK GENERATOR/DRIVER
SCHOTTKY MONOLITHIC INTEGRATED CIRCl)IT
LSUFFIX CERAMIC PACKAGE
CASE 620-02
ADDRESS AND
CONTROL BUS
DATA BUS
PIN CONNECTIONS
X1
X2
Ext In
4 x fo
2 x fo Memory
Ready Bus q,2
Ground
3 4 5 6 7 B
16 VCC i5 MPUq,1 14 Reset Output 13 MPU q,2 12 Power-On Reset
11 DMA/Ref Grant 10 DMA/Ref Req
9 Memory Clock
3·637
ORDERING INFORMATION
IDevice
Temperature Range
MC6875L I MC6875AL I
Oto +700 C -55 to +1250 C
I Paek..e I Ceramic Dip ICeramic Dip
II
MC6875, MC6875A
ABSOLUTE MAXIMUM RATINGS (Unless otherwise noted TA = 250 C.l
Rating
Symbol
Value
Power Supply
Voltage
Input
Voltage
Operating Ambient Temperature Range MC6875L MC6875AL
VCC VI TA
+7.0 +5.5
oto +70
·55 to +125
Unit Vdc Vdc
°c
Storage Temperature Range
Tstg -65 to +150 °c
...