MC68HC711E9CFNE3 Freescale Semiconductor, MC68HC711E9CFNE3 Datasheet - Page 47

IC MCU 3MHZ 12K OPT 52-PLCC

MC68HC711E9CFNE3

Manufacturer Part Number
MC68HC711E9CFNE3
Description
IC MCU 3MHZ 12K OPT 52-PLCC
Manufacturer
Freescale Semiconductor
Series
HC11r
Datasheets

Specifications of MC68HC711E9CFNE3

Core Processor
HC11
Core Size
8-Bit
Speed
3MHz
Connectivity
SCI, SPI
Peripherals
POR, WDT
Number Of I /o
38
Program Memory Size
12KB (12K x 8)
Program Memory Type
OTP
Eeprom Size
512 x 8
Ram Size
512 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
52-PLCC
Processor Series
HC711E
Core
HC11
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
SCI, SPI
Maximum Clock Frequency
3 MHz
Number Of Programmable I/os
38
Number Of Timers
8
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
On-chip Adc
8 bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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IRQE — Configure IRQ for Edge-Sensitive Only Operation Bit
DLY — Enable Oscillator Startup Delay Bit
CME — Clock Monitor Enable Bit
Bit 2 — Not implemented
CR[1:0] — COP Timer Rate Select Bits
2.4 EPROM/OTPROM
Certain devices in the M68HC11 E series include on-chip EPROM/OTPROM. For instance:
Standard MC68HC71E9 and MC68HC711E20 devices are shipped with the EPROM/OTPROM contents
erased (all 1s). The programming operation programs zeros. Windowed devices must be erased using a
suitable ultraviolet light source before reprogramming. Depending on the light source, erasing can take
from 15 to 45 minutes.
Using the on-chip EPROM/OTPROM programming feature requires an external 12-volt nominal power
supply (V
(PPROG).
PPROG is the combined EPROM/OTPROM and EEPROM programming register on all devices with
EPROM/OTPROM except the MC68HC711E20. For the MC68HC711E20, there is a separate register for
EPROM/OTPROM programming called the EPROG register.
As described in the following subsections, these two methods of programming and verifying EPROM are
possible:
Freescale Semiconductor
1. Programming an individual EPROM address
2. Programming the EPROM with downloaded data
Refer to
Refer to
Always reads 0
The internal E clock is divided by 2
determine a scaling factor for the watchdog timer. Refer to
0 = The oscillator startup delay coming out of stop mode is bypassed and the MCU resumes
1 = A delay of approximately 4000 E-clock cycles is imposed as the MCU is started up from the stop
The MC68HC711E9 devices contain 12 Kbytes of on-chip EPROM (OTPROM in non-windowed
package).
The MC68HC711E20 has 20 Kbytes of EPROM (OTPROM in non-windowed package).
The MC68HC711E32 has 32 Kbytes of EPROM (OTPROM in non-windowed package).
PPE
processing within about four bus cycles.
power-saving mode. This delay allows the crystal oscillator to stabilize.
Chapter 5 Resets and
Chapter 5 Resets and
). Normal programming is accomplished using the EPROM/OTPROM programming register
Interrupts.
Interrupts.
M68HC11E Family Data Sheet, Rev. 5.1
15
before it enters the COP watchdog system. These control bits
Chapter 5 Resets and
Interrupts.
EPROM/OTPROM
47

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