XC68HC705B32CB Freescale Semiconductor, XC68HC705B32CB Datasheet - Page 169

• Manufacturer Part Number: XC68HC705B32CB
• Description: IC MCU 2.1MHZ 32K OTP 56-DIP
• Manufacturer: Freescale Semiconductor
• Series: HC05r

Specifications of XC68HC705B32CB

• Core Processor: HC05
• Core Size: 8-Bit
• Speed: 2.1MHz
• Connectivity: SCI
• Peripherals: POR, WDT
• Number Of I /o: 32
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: OTP
• Eeprom Size: 256 x 8
• Ram Size: 528 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x8b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 56-SDIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

(1) This register is implemented in EPROM, therefore reset has no effect on the state of the individual bits.
C.4
Note:
Bit 7 — Factory use only
Warning: This bit is strictly for factory use only and will always read zero to avoid accidental
EPP — EPROM protect
This bit protects the contents of the main EPROM against accidental modification; it has no effect
on reading or executing code in the EPROM.
RTIM — Reset time
This bit can modify t
This feature is handled in the ROM part via a mask option.
RWAT — Watchdog after reset
This bit can modify the status of the watchdog counter after reset.
WWAT — Watchdog during WAIT mode
This bit can modify the status of the watchdog counter during WAIT mode.
MC68HC05B6
Rev. 4.1
1 (set)
0 (clear) –
1 (set)
0 (clear) –
1 (set)
0 (clear) –
Options (OPTR)
This register can only be written to while the device is in bootloader mode.
damage to the device. Any attempt to write to this bit could result in physical damage.
Options register (OPTR)
–
–
–
(1)
PORL
EPROM contents are protected.
EPROM contents are not protected.
t
t
The watchdog will be active immediately following power-on or
external reset (except in bootstrap mode).
The watchdog system will be disabled after power-on or external
reset.
PORL
PORL
, i.e. the time that the RESET pin is kept low following a power-on reset.
= 16 cycles.
= 4064 cycles.
Address
$1EFE
bit 7
MC68HC705B5
bit 6
EPP
bit 5
0
RTIM RWAT WWAT PBPD PCPD Not affected
bit 4
bit 3
bit 2
bit 1
bit 0
Freescale
on reset
State
C-7
14