MC68HC908QY1VDTE Freescale Semiconductor, MC68HC908QY1VDTE Datasheet - Page 99

IC MCU 1.5K FLASH 16-TSSOP

MC68HC908QY1VDTE

Manufacturer Part Number
MC68HC908QY1VDTE
Description
IC MCU 1.5K FLASH 16-TSSOP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet

Specifications of MC68HC908QY1VDTE

Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Peripherals
LVD, POR, PWM
Number Of I /o
13
Program Memory Size
1.5KB (1.5K x 8)
Program Memory Type
FLASH
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 105°C
Package / Case
16-TSSOP
Processor Series
HC08Q
Core
HC08
Data Bus Width
8 bit
Data Ram Size
128 B
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
14
Number Of Timers
2
Maximum Operating Temperature
+ 105 C
Mounting Style
SMD/SMT
Development Tools By Supplier
FSICEBASE, M68CBL05AE, DEMO908QB8, DEMO908QC16
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Connectivity
-
Lead Free Status / Rohs Status
 Details
Figure 12-3
shows the port A I/O logic.
READ DDRA ($0004)
WRITE DDRA ($0004)
WRITE PTA ($0000)
READ PTA ($0000)
When DDRAx is a 1, reading address $0000 reads the PTAx data latch. When 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
if the six port A pins. Each bit is individually configurable and requires the corresponding data direction
register, DDRAx, to be configured as input. Each pullup device is automatically and dynamically disabled
when its corresponding DDRAx bit is configured as output.
Address: $000B
Bit 7
Read:
OSC2EN
Write:
Reset:
0
= Unimplemented
Figure 12-4. Port A Input Pullup Enable Register (PTAPUE)
OSC2EN
— Enable PTA4 on OSC2 Pin
This read/write bit configures the OSC2 pin function when internal oscillator or RC oscillator option is
selected. This bit has no effect for the XTAL or external oscillator options.
1 = OSC2 pin outputs the internal or RC oscillator clock (BUSCLKX4)
0 = OSC2 pin configured for PTA4 I/O, having all the interrupt and pullup functions
Freescale Semiconductor
DDRAx
RESET
PTAx
Figure 12-3. Port A I/O Circuit
NOTE
Figure 12-3
does not apply to PTA2
6
5
4
3
PTAPUE5
PTAPUE4
PTAPUE3
0
0
0
0
MC68HC908QY/QT Family Data Sheet, Rev. 6
PTAPUEx
30 k
PTAx
TO KEYBOARD INTERRUPT CIRCUIT
2
1
Bit 0
PTAPUE2
PTAPUE1
PTAPUE0
0
0
0
Port A
99

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