MC68HC711P2CFN4 Freescale Semiconductor, MC68HC711P2CFN4 Datasheet - Page 46

• Manufacturer Part Number: MC68HC711P2CFN4
• Description: IC MCU 32K OTP 4MHZ 84-PLCC
• Manufacturer: Freescale Semiconductor
• Series: HC11r

Specifications of MC68HC711P2CFN4

• Core Processor: HC11
• Core Size: 8-Bit
• Speed: 4MHz
• Connectivity: MI Bus, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 50
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: OTP
• Eeprom Size: 640 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 84-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Operating Modes and On-Chip Memory
3.4.1.2 ROM and EPROM
3.4.1.3 Bootloader ROM
Technical Data
The on-chip RAM is a fully static memory. RAM contents can be
preserved during periods of processor inactivity by either of two
methods, both of which reduce power consumption:
The MC68HC11P2 MCU has 32kbytes of ROM/EPROM. The
ROM/EPROM array is enabled when the ROMON bit in the CONFIG
register is set to one (erased). The ROMAD bit in CONFIG places the
ROM/EPROM at either $8000–$FFFF out of reset (ROMAD = 1) or at
$0000–$7FFF (ROMAD = 0) in expanded mode.
The bootloader ROM is enabled at address $BE40–$BFFF during
special bootstrap mode. The reset vector is fetched from this ROM and
the MCU executes the bootloader firmware. In normal modes, the
bootloader ROM is disabled.
1. During the software-based STOP mode, MCU clocks are stopped,
2. To reduce power consumption to a minimum, V
Freescale Semiconductor, Inc.
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but the MCU continues to draw power from V
current is directly related to operating frequency in CMOS
integrated circuits and there is very little leakage when the clocks
are stopped. These two factors reduce power consumption while
the MCU is in STOP mode.
off, and the MODB/VSTBY pin can be used to supply RAM power
from either a battery back-up or a second power supply. Although
this method requires external hardware, it is very effective. Refer
to
stand-by RAM power supply and to
description of low power operation.
Operating Modes and On-Chip Memory
Pin Descriptions
Go to: www.freescale.com
for information about how to connect the
Resets and Interrupts
MC68HC11P2 — Rev 1.0
DD
DD
. Power supply
can be turned
for a