MC68HC908JB8JDW Freescale Semiconductor, MC68HC908JB8JDW Datasheet - Page 221

• Manufacturer Part Number: MC68HC908JB8JDW
• Description: IC MCU 8K FLASH 3MHZ 20-SOIC
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908JB8JDW

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 3MHz
• Connectivity: USB
• Peripherals: LVD, POR, PWM
• Number Of I /o: 13
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 20-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

MC68HC908JB8•MC68HC08JB8•MC68HC08JT8 — Rev. 2.3
Freescale Semiconductor
$001C
$001E
Addr.
PTE4
IRQ
IRQPD
PTE4IE
I
PULLUP
DEVICE
NTERNAL
IRQ Status and Control Register
TO PTE4 PULLUP
ENABLE CIRCUITRY
IRQ Option Control Register
DECODER
V
VECTOR
RESET
FETCH
DD
ACK
Register Name
Figure 13-1. IRQ Module Block Diagram
(IOCR)
(ISCR)
Figure 13-2. IRQ I/O Register Summary
Reset:
Reset:
Read:
Read:
Write:
Write:
External Interrupt (IRQ)
Bit 7
0
0
0
0
MODE
"1"
"1"
= Unimplemented
D
D
6
0
0
0
0
CK
CK
CLR
IRQ
CLR
FF
Q
Q
5
0
0
0
0
READ IOCR
PTE4IF
VOLTAGE
DETECT
HIGH
IMASK
4
0
0
0
0
SYNCHRO-
NIZER
IRQF
3
0
0
0
PTE4IF
ACK
External Interrupt (IRQ)
Functional Description
2
0
0
0
IRQF
PTE4IE
IMASK
Technical Data
1
0
0
TO MODE
SELECT
LOGIC
TO CPU FOR
BIL/BIH
INSTRUCTIONS
IRQ
INTERRUPT
REQUEST
IRQPD
MODE
Bit 0
0
0
221