MC908GT16CBE Freescale Semiconductor, MC908GT16CBE Datasheet - Page 127
![IC MCU 16K FLASH 8MHZ SPI 42SDIP](/photos/12/38/123871/mc908gt16cbe_sml.jpg)
MC908GT16CBE
Manufacturer Part Number
MC908GT16CBE
Description
IC MCU 16K FLASH 8MHZ SPI 42SDIP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908GT8CFBE.pdf
(292 pages)
Specifications of MC908GT16CBE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
36
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
42-DIP (0.600", 15.24mm)
Controller Family/series
HC08
No. Of I/o's
34
Ram Memory Size
512Byte
Cpu Speed
8MHz
No. Of Timers
2
Embedded Interface Type
I2C, SCI, SPI
Rohs Compliant
Yes
Processor Series
HC08GT
Core
HC08
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
SCI, SPI
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
30
Number Of Timers
4
Operating Supply Voltage
0 V to 5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
Development Tools By Supplier
FSICEBASE, DEMO908GZ60E, M68CBL05CE, M68EML08GPGTE
Minimum Operating Temperature
- 40 C
On-chip Adc
8 bit, 8 Channel
Package
42SPDIP
Family Name
HC08
Maximum Speed
8 MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
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Figure 12-4
When bit DDRAx is a 1, reading address $0000 reads the PTAx data latch. When bit DDRAx is a 0,
reading address $0000 reads the voltage level on the pin. The data latch can always be written,
regardless of the state of its data direction bit.
12.2.3 Port A Input Pullup Enable Register
The port A input pullup enable register (PTAPUE) contains a software configurable pullup device for each
of the eight port A pins. Each bit is individually configurable and requires that the data direction register,
DDRA, bit be configured as an input. Each pullup is automatically and dynamically disabled when a port
bit’s DDRA is configured for output mode
Freescale Semiconductor
1. X = Don’t care
2. I/O pin pulled up to V
3. Writing affects data register, but does not affect input.
4. Hi-Z = High impedance
PTAPUE
Bit
X
1
0
shows the port A I/O logic.
Address:
DDRA
Reset:
Read:
Write:
Bit
0
0
1
MC68HC908GT16 • MC68HC908GT8 • MC68HC08GT16 Data Sheet, Rev. 5.0
Figure 12-5. Port A Input Pullup Enable Register (PTAPUE)
DD
READ DDRA ($0004)
WRITE DDRA ($0004)
WRITE PTA ($0000)
READ PTA ($0000)
PTAPUE7
$0004
by internal pullup device
Bit 7
0
PTA
X
Bit
X
X
(1)
PTAPUE6
6
0
Input, Hi-Z
Input, V
Table 12-2. Port A Pin Functions
RESET
Figure 12-4. Port A I/O Circuit
I/O Pin
Output
Mode
PTAPUE5
DD
5
0
(2)
(4)
Table 12-2
PTAPUE4
DDRAx
Accesses to DDRA
PTAx
4
0
DDRA7–DDRA0
DDRA7–DDRA0
DDRA7–DDRA0
.
Read/Write
PTAPUE3
summarizes the operation of the port A pins.
3
0
PTAPUE2
2
0
PTAPUEx
PTA7–PTA0
Read
PTAPUE1
Pin
Pin
1
0
Accesses to PTA
V
DD
45 k
PTAPUE0
Bit 0
PTAx
0
PTA7–PTA0
PTA7–PTA0
PTA7–PTA0
Write
Port A
(3)
(3)
127
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