MC68HC908QY1MDW Freescale Semiconductor, MC68HC908QY1MDW Datasheet - Page 74

• Manufacturer Part Number: MC68HC908QY1MDW
• Description: 8-bit Microcontrollers - MCU 8 Bit 8MHz
• Manufacturer: Freescale Semiconductor

Specifications of MC68HC908QY1MDW

• Product Category: 8-bit Microcontrollers - MCU
• Rohs: yes
• Core: HC08
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 8 MHz
• Program Memory Size: 1.5 KB
• Data Ram Size: 128 B
• On-chip Adc: No
• Operating Supply Voltage: 3.3 V to 5.5 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: SOIC-16
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 13
• Number Of Timers: 2
• Program Memory Type: Flash
• Factory Pack Quantity: 47
• Supply Voltage - Max: 5.5 V
• Supply Voltage - Min: 2.7 V

External Interrupt (IRQ)
When set, the IMASK bit in INTSCR masks the IRQ interrupt request. A latched interrupt request is not
presented to the interrupt priority logic unless IMASK is clear.
A falling edge on the IRQ pin can latch an interrupt request into the IRQ latch. An IRQ vector fetch,
software clear, or reset clears the IRQ latch.
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PTA4/OSC2/AD2/KBI4
PTA5/OSC1/AD3/KBI5
PTA2/IRQ/KBI2/TCLK
PTA0/AD0/TCH0/KBI0
PTA1/AD1/TCH1/KBI1
RST, IRQ: Pins have internal (about 30K Ohms) pull up
PTA[0:5]: High current sink and source capability
PTA[0:5]: Pins have programmable keyboard interrupt and pull up
PTB[0:7]: Not available on 8-pin devices – MC68HC908QT1, MC68HC908QT2, and MC68HC908QT4 (see note in
12.1
ADC: Not available on the MC68HC908QY1 and MC68HC908QT1
PTA3/RST/KBI3
POWER SUPPLY
Introduction)
PTB0
PTB1
PTB2
PTB3
PTB4
PTB5
PTB6
PTB7
The interrupt mask (I) in the condition code register (CCR) masks all
interrupt requests, including the IRQ interrupt request.
128 BYTES RAM
8-BIT ADC
Figure 8-1. Block Diagram Highlighting IRQ Block and Pins
V
V
DD
SS
MC68HC908QY/QT Family Data Sheet, Rev. 6
MC68HC908QT2, AND MC68HC908QT1:
MC68HC908QY4 AND MC68HC908QT4
MC68HC908QY2, MC68HC908QY1,
M68HC08 CPU
USER FLASH
4096 BYTES
1536 BYTES
NOTE
KEYBOARD INTERRUPT
SYSTEM INTEGRATION
SINGLE INTERRUPT
POWER-ON RESET
MONITOR ROM
(OSCILLATOR)
GENERATOR
16-BIT TIMER
MODULE
MODULE
MODULE
MODULE
MODULE
MODULE
MODULE
CLOCK
BREAK
COP
Freescale Semiconductor