MC68HC908JB16DW Freescale Semiconductor, MC68HC908JB16DW Datasheet - Page 278

• Manufacturer Part Number: MC68HC908JB16DW
• Description: IC MCU 16K FLASH 6MHZ USB 28SOIC
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908JB16DW

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 6MHz
• Connectivity: SCI, USB
• Peripherals: LED, LVD, POR, PWM
• Number Of I /o: 21
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

Input/Output (I/O) Ports
14.7 Port Options
Technical Data
278
When bit DDREx is a logic 1, reading address $0008 reads the PTEx
data latch. When bit DDREx is a logic 0, reading address $0008 reads
the voltage level on the pin. The data latch can always be written,
regardless of the state of its data direction bit.
the operation of the port E pins.
All pins of port A, port C, and port E have programmable pullup resistors.
Port D has programmable LED drive capability; PTD5–PTD2 each have
10mA high current sink, and PTD1–PTD0 each have 25mA high current
sink.
Notes:
1. X = don’t care.
2. Hi-Z = high impedance.
3. Writing affects data register, but does not affect input.
DDRE
Bit
0
1
READ DDRE ($0009)
WRITE DDRE ($0009)
WRITE PTE ($0008)
READ PTE ($0008)
Input/Output (I/O) Ports
PTE
X
Bit
X
(1)
Table 14-5. Port E Pin Functions
Figure 14-13. Port E I/O Circuit
RESET
I/O Pin Mode
Input, Hi-Z
Output
(2)
DDREx
PTEx
Read/Write
DDRE[4:0]
DDRE[4:0]
Accesses
to DDRE
Table 14-3
MC68HC908JB16
PTE[4:0]
Freescale Semiconductor
Read
Accesses to PTE
Pin
summarizes
PTE[4:0]
PTE[4:0]
—
Write
Rev. 1.1
PTEx
(3)