MC68HC711E20CFN2

Manufacturer Part NumberMC68HC711E20CFN2
DescriptionIC MCU 20K 2MHZ OTP 52-PLCC
ManufacturerFreescale Semiconductor
SeriesHC11
MC68HC711E20CFN2 datasheets
 

Specifications of MC68HC711E20CFN2

Core ProcessorHC11Core Size8-Bit
Speed2MHzConnectivitySCI, SPI
PeripheralsPOR, WDTNumber Of I /o38
Program Memory Size20KB (20K x 8)Program Memory TypeOTP
Eeprom Size512 x 8Ram Size768 x 8
Voltage - Supply (vcc/vdd)4.5 V ~ 5.5 VData ConvertersA/D 8x8b
Oscillator TypeInternalOperating Temperature-40°C ~ 85°C
Package / Case52-PLCCLead Free Status / RoHS StatusContains lead / RoHS non-compliant
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Page 202/242

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EPROM Programming Utility
PROGRAM Utility in MCU
INITIALIZE...
X = PROGRAM TIME
Y = FIRST ADDRESS
START
[8]
SEND $FF
[9]
WAIT1
NO
ANY DATA RECEIVED ?
YES
PROGRAM BYTE
READ PROGRAMMED DATA
AND SEND TO VERIFY
POINT TO NEXT LOCATION
TO BE PROGRAMMED
[12]
[15]
PROGRAM CONTINUES
AS LONG AS DATA
IS RECEIVED
VERIFY DATA TO HOST
(SAME AS MCU Tx DATA)
[1]
MCU RECEIVE DATA (FROM HOST)
EPROM PROGRAMMING
MCU TRANSMIT DATA (VERIFY)
Figure 4. Host and MCU Activity during EPROM PROGRAM Utility
202
HOST NORMALLY WAITS FOR $FF
FROM MCU BEFORE SENDING DATA
FOR EPROM PROGRAMMING
$BF00 - PROGRAM
INDICATES READY
TO HOST
NO
[10]
[13]
NO
[11]
[14]
YES
$FF
V1
V2
[4]
[5]
[7]
[3]
[6]
D1
D2
D3
[2]
[10]
[13]
P1
P2
[14]
[9]
[11]
[12]
[8]
$FF
V1
V2
M68HC11 Bootstrap Mode, Rev. 1.1
Driver Program in HOST
START
[3]
SEND FIRST DATA BYTE
DATA_LOOP
MORE DATA TO SEND ?
YES
SEND NEXT DATA
[4]
[6]
[5]
[7]
VERIFY DATA RECEIVED ?
YES
NO
VERIFY DATA CORRECT ?
INDICATE ERROR
YES
MORE TO VERIFY ?
NO
DONE
V3
V4
HOST SENDING
DATA FOR
MCU EPROM
D4
D5
MC68HC711E9
P3
P4
EXECUTING
[15]
"PROGRAM" LOOP
V3
V4
Freescale Semiconductor