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MC68HC05B4 Datasheet, PDF (244/298 Pages) Motorola, Inc – High-density Complementary Metal Oxide Semiconductor (HCMOS) Microcomputer Unit
VPP1
VPP6
RESET
IRQ
OSC2
OSC1
VDD
VSS
PD0/AN0
PD1/AN1
PD2/AN2
PD3/AN3
PD4/AN4
PD5/AN5
PD6/AN6
PD7/AN7
VRH
VRL
256 bytes
EEPROM
Charge pump
32 kbytes
ROM
COP watchdog
Oscillator
÷ 2 / ÷32
M68HC05
CPU
8-bit
A/D converter
638 bytes
self-check ROM
528 bytes
static RAM
16-bit
timer
SCI
PLM
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PC0
PC1
PC2/ECLK
PC3
PC4
PC5
PC6
PC7
TCMP1
TCMP2
TCAP1
TCAP2
RDI
SCLK
TDO
PLMA D/A
PLMB D/A
Figure G-1 MC68HC05B32 block diagram
Note:
Preliminary electrical specifications for the MC68HC05B32 should be taken as being
similar to those for the MC68HC705B32. When silicon is fully available, the part will be
re-characterised and new data made available.
G.2
External clock
14
When using an external clock the OSC1 and OSC2 pins should be driven in antiphase (see
Figure D-2). The tOXOV or tILCH specifications (see Section H.9) do not apply when using an
external clock input. The equivalent specification of the external clock source should be used in
lieu of tOXOV or tILCH.
MOTOROLA
G-2
MC68HC05B32
TPG
MC68HC05B6
Rev. 4