MC908QB8MDTE Freescale Semiconductor, MC908QB8MDTE Datasheet - Page 108
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MC908QB8MDTE
Manufacturer Part Number
MC908QB8MDTE
Description
IC MCU 8BIT 8K FLASH 16-TSSOP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908QB8CDWE.pdf
(236 pages)
Specifications of MC908QB8MDTE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI, SPI
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)
2.7 V ~ 5.5 V
Data Converters
A/D 10x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
16-TSSOP
Processor Series
HC08QB
Core
HC08
Data Bus Width
8 bit
Data Ram Size
256 B
Interface Type
3-Wire, ESCI, SPI, UART
Number Of Programmable I/os
13
Number Of Timers
4
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Development Tools By Supplier
FSICEBASE, M68CBL05AE, DEMO908QB8, DEMO908QC16
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 10 Channel
Controller Family/series
HC08
No. Of I/o's
14
Ram Memory Size
256Byte
Cpu Speed
8MHz
No. Of Timers
1
Digital Ic Case Style
TSSOP
Rohs Compliant
Yes
For Use With
DEMO908QB8 - BOARD DEMO FOR MC68HC908QB8
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC908QB8MDTE
Manufacturer:
MAX
Quantity:
150
Part Number:
MC908QB8MDTE
Manufacturer:
FREESCALE
Quantity:
20 000
Input/Output Ports (PORTS)
12.3.3 Port B Input Pullup Enable Register
The port B input pullup enable register (PTBPUE) contains a software configurable pullup device for each
of the eight port B pins. Each bit is individually configurable and requires the corresponding data direction
register, DDRBx, be configured as input. Each pullup device is automatically and dynamically disabled
when its corresponding DDRBx bit is configured as output.
PTBPUE[7:0] — Port B Input Pullup Enable Bits
12.3.4 Port B Summary Table
Table 12-2
pins.
108
1. X = don’t care
2. Hi-Z = high impedance
3. Writing affects data register, but does not affect the input.
These read/write bits are software programmable to enable pullup devices on port B pins
DDRB
Bit
0
1
1 = Corresponding port B pin configured to have internal pull if its DDRB bit is set to 0
0 = Pullup device is disconnected on the corresponding port B pin regardless of the state of its
DDRB bit.
summarizes the operation of the port A pins when used as a general-purpose input/output
Reset:
Read:
Write:
PTB
X
Bit
X
(1)
PTBPUE7
Figure 12-8. Port B Input Pullup Enable Register (PTBPUE)
Bit 7
0
Input, Hi-Z
I/O Pin
Output
Mode
PTBPUE6
6
0
(2)
Table 12-2. Port B Pin Functions
MC68HC908QB8 Data Sheet, Rev. 3
PTBPUE5
5
0
PTBPUE4
Accesses to DDRB
DDRB7–DDRB0
DDRB7–DDRB0
4
0
Read/Write
PTBPUE3
3
0
PTBPUE2
2
0
PTBPUE2
Read
Pin
Pin
1
0
Accesses to PTB
PTBPUE0
Freescale Semiconductor
Bit 0
0
PTB7–PTB0
PTB7–PTB0
Write
(3)