mc68hc05l28 Freescale Semiconductor, Inc, mc68hc05l28 Datasheet - Page 20

• Manufacturer Part Number: mc68hc05l28
• Description: ?exible General-purpose Microcomputer
• Manufacturer: Freescale Semiconductor, Inc

1
•
•
•
•
•
•
•
•
MOTOROLA
1-2
LCD subsystem with 18 frontplanes and 4 backplanes
16-bit programmable timer with 2 input capture and 2 output compare functions
15-stage, multifunctional core timer, with overflow, real-time interrupt and computer operating
properly (COP) watchdog timer (software selectable)
3 interrupt request pins with edge or edge-and-level sensitive triggering (software selectable)
2-channel, 8-bit analog-to-digital converter
16 dedicated I/O lines 6 I/O lines shared with the 16-bit programmable timer and the
multi-master I
Power saving STOP and WAIT modes
Available in 56-pin SDIP package
2
Figure 1-1 MC68HC05L28/ MC68HC705L28 block diagram
C-bus interface
RESET
OSC1
OSC2
IRQ0
IRQ1
IRQ2
VDD
VSS
256 x 8 RAM
M68HC05 CPU
COP system
Core timer
Oscillator
INTRODUCTION
18 x 4 LCD subsystem
8128 x 8 user EPROM
8176 x 8 user ROM
8-bit, 2-channel
bootstrap ROM
A/D converter
EEPROM
or
240 x 8
240 x 8
16-bit
timer
I
2
C
TCMP2
TCMP1
TCAP2
TCAP1
SDA0
SCL0
AD1
AD0
VREFL
VREFH
BP0
BP1
BP2
BP3
PA7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
PB7
PB6
PB5
PB4
PB3
PB2
PB1
PB0
PD5
PD4
PD3
PD2
PD1
PD0
MC68HC05L28
TPG