MC908JK8CDWE Freescale Semiconductor, MC908JK8CDWE Datasheet - Page 157

• Manufacturer Part Number: MC908JK8CDWE
• Description: IC MCU 8K FLASH 8MHZ 20-SOIC
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908JK8CDWE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: LED, LVD, POR, PWM
• Number Of I /o: 15
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 13x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-SOIC (7.5mm Width)
• Processor Series: HC08JK
• Core: HC08
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: SCI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 15
• Number Of Timers: 4
• Operating Supply Voltage: 3 V, 5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: FSICEBASE, DEMO908JL16E, M68CBL05CE
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 13-ch x 8-bit
• Controller Family/series: HC08
• No. Of I/o's: 15
• Ram Memory Size: 256Byte
• Cpu Speed: 8MHz
• No. Of Timers: 2
• Embedded Interface Type: SCI
• No. Of Pwm Channels: 2
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

When DDRBx is a logic 1, reading address $0001 reads the PTBx data latch. When DDRBx is a logic 0,
reading address $0001 reads the voltage level on the pin. The data latch can always be written,
regardless of the state of its data direction bit.
11.4 Port D
Port D is an 8-bit special function port that shares two of its pins with the serial communications interface
module (see
pins with the analog-to-digital converter module (see
sink (25mA) and programmable pull-up. PTD2, PTD3, PTD6 and PTD7 each has LED sink capability.
Freescale Semiconductor
Chapter
DDRB Bit
1. X = don’t care.
2. Hi-Z = high impedance.
3. Writing affects data register, but does not affect the input.
MC68HC908JL8/JK8 • MC68HC08JL8/JK8 • MC68HC908KL8 Data Sheet, Rev. 3.1
0
1
PTD0–PTD1 are available on 28-pin and 32-pin packages only.
READ DDRB ($0005)
WRITE DDRB ($0005)
WRITE PTB ($0001)
READ PTB ($0001)
9), two of its pins with the timer 1 interface module, (see
PTB Bit
X
X
(1)
Table 11-3. Port B Pin Functions
I/O Pin Mode
RESET
Input, Hi-Z
Figure 11-9. Port B I/O Circuit
Output
(2)
Table 11-3
NOTE
Accesses to DDRB
DDRBx
PTBx
Chapter
Read/Write
DDRB[7:0]
DDRB[7:0]
summarizes the operation of the port B pins.
10). PTD6 and PTD7 each has high current
To Analog-To-Digital Converter
PTB[7:0]
Read
Pin
Accesses to PTB
Chapter
PTB[7:0]
PTB[7:0]
Write
PTBx
8), and four of its
(3)
Port D
157