MC68HC705SR3CP Freescale Semiconductor, MC68HC705SR3CP Datasheet - Page 48

• Manufacturer Part Number: MC68HC705SR3CP
• Description: IC MCU 3.75K 2.1MHZ OTP 40-DIP
• Manufacturer: Freescale Semiconductor
• Series: HC05r

Specifications of MC68HC705SR3CP

• Core Processor: HC05
• Core Size: 8-Bit
• Speed: 4MHz
• Peripherals: LED, POR
• Number Of I /o: 32
• Program Memory Size: 3.75KB (3.75K x 8)
• Program Memory Type: OTP
• Ram Size: 192 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 4x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Connectivity: -

6
Freescale
6-2
8
8
8
TCEX
0
0
1
1
RST
Interrupt Circuit
Figure 6-1 Timer Block Diagram
TIF
Overflow
Detect
Circuit
TINE
0
1
0
1
TIM TCEX TINE PRER PR2
8-bit count-down timer counter
Clock Source
Timer Data Register ($08)
Internal clock to timer
“AND” of internal clock and TIMER pin to timer
Input clock to timer disabled
TIMER pin to timer
7-bit prescaler counter
Logic
TIMER
Timer Control Register ($09)
8
Clock Source
(8 to 1 MUX)
Prescaler
Select
Logic
PR1
PR0
Internal Processor Clock
TIMER
MC68HC05SR3
TPG