MC908JB16DWE Freescale Semiconductor, MC908JB16DWE Datasheet - Page 273
MC908JB16DWE
Manufacturer Part Number
MC908JB16DWE
Description
IC MCU 16K FLASH 6MHZ USB 28SOIC
Manufacturer
Freescale Semiconductor
Series
HC08r
Specifications of MC908JB16DWE
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)
Processor Series
HC08JB
Core
HC08
Data Bus Width
8 bit
Data Ram Size
384 B
Interface Type
I2C/SCI/SPI/USB
Maximum Clock Frequency
12 MHz
Number Of Programmable I/os
21
Number Of Timers
4
Operating Supply Voltage
5.5 V
Maximum Operating Temperature
+ 70 C
Mounting Style
SMD/SMT
Development Tools By Supplier
FSICEBASE, DEMO908GZ60E, M68EML08GZE, KITUSBSPIDGLEVME, KITUSBSPIEVME, KIT33810EKEVME
Minimum Operating Temperature
0 C
Controller Family/series
HC08
No. Of I/o's
21
Ram Memory Size
384Byte
Cpu Speed
8MHz
No. Of Timers
2
Embedded Interface Type
I2C, SCI, SPI
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC908JB16DWE
Manufacturer:
FREESCALE
Quantity:
1 831
Part Number:
MC908JB16DWE
Manufacturer:
FRE/MOT
Quantity:
20 000
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14.5.2 Data Direction Register D
MC68HC908JB16
Freescale Semiconductor
NOTE:
NOTE:
—
Rev. 1.1
Address:
Data direction register D determines whether each port D pin is an input
or an output. Writing a logic 1 to a DDRD bit enables the output buffer for
the corresponding port D pin; a logic 0 disables the output buffer.
DDRD[5:0] — Data Direction Register D Bits
Avoid glitches on port D pins by writing to the port D data register before
changing data direction register D bits from 0 to 1.
For those devices packaged in a 32-pin low-profile quad flat pack,
PTD5–1 are not connected. DDRD5–1 should be set to a 1 to configure
PTD5–1 as outputs.
Figure 14-10
Reset:
Read:
Write:
These read/write bits control port D data direction. Reset clears
DDRD[5:0], configuring all port D pins as inputs.
Port D pins are open-drain when configured as output.
1 = Corresponding port D pin configured as output
0 = Corresponding port D pin configured as input
$0007
Bit 7
0
0
Figure 14-9. Data Direction Register D (DDRD)
shows the port D I/O circuit logic.
Input/Output (I/O) Ports
6
0
0
DDRD5
5
0
DDRD4
4
0
DDRD3
3
0
DDRD2
2
0
Input/Output (I/O) Ports
DDRD1
1
0
Technical Data
DDRD0
Bit 0
0
273
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