XC705B32CFNE Freescale Semiconductor, XC705B32CFNE Datasheet - Page 261

• Manufacturer Part Number: XC705B32CFNE
• Description: IC MCU 2.1MHZ 32K OTP 52-PLCC
• Manufacturer: Freescale Semiconductor
• Series: HC05r

Specifications of XC705B32CFNE

• 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: 52-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(1) Because this register is implemented in EPROM, reset has no effect on the individual bits.
H.4.4
RTIM
This bit can modify the time t
RWAT
This bit can modify the status of the watchdog counter after reset. Usually, the watchdog system
is disabled after power-on or external reset but when this bit is set, it will be active immediately
after the following resets (except in bootstrap mode).
WWAT
This bit can modify the status of the watchdog counter in WAIT mode. Normally, the watchdog
system is disabled in WAIT mode but when this bit is set, the watchdog will be active in WAIT
mode.
PBPD
This bit, when programmed, connects a resistive pull-down on all 8 pins of port B. This pull-down,
R
PCPD
This bit, when programmed, connects a resistive pull-down on all 8 pins of port C. This pull-down,
R
MC68HC05B6
Rev. 4.1
PD
PD
Mask option register (MOR)
, is active on a given pin only while it is an input.
, is active on a given pin only while it is an input.
1 (set)
0 (clear) –
Mask option register
–
t
t
PORL
PORL
(1)
= 16 cycles.
= 4064 cycles.
PORL
Address
$7FDE
, where the RESET pin is kept low after a power-on reset.
bit 7
MC68HC705B32
bit 6
bit 5
RTIM RWAT WWAT PBPD PCPD Not affected
bit 4
bit 3
bit 2
bit 1
bit 0
Freescale
on reset
State
H-11
14