MC68HC705B16CFN

Manufacturer Part NumberMC68HC705B16CFN
DescriptionIC MCU 2.1MHZ 15K OTP 52-PLCC
ManufacturerFreescale Semiconductor
SeriesHC05
MC68HC705B16CFN datasheet
 


Specifications of MC68HC705B16CFN

Core ProcessorHC05Core Size8-Bit
Speed2.1MHzConnectivitySCI
PeripheralsPOR, WDTNumber Of I /o32
Program Memory Size15KB (15K x 8)Program Memory TypeOTP
Eeprom Size256 x 8Ram Size352 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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E6LAT — EPROM programming latch enable bit
1 (set)
Address and up to sixteen data bytes can be latched into the EPROM
for further programming providing the E6PGM bit is cleared. When
programming the EPROM, all other 15 addresses must be latched
with the erased state ($00) or corruption may occur.
0 (clear) –
Data can be read from the EPROM or firmware ROM; the E6PGM bit
is reset to zero when E6LAT is ‘0’.
STOP, power-on and external reset clear the E6LAT bit.
Note:
After the t
erase time or t
ERA1
to zero in order to clear the E6PGM bit.
E6PGM — EPROM program enable bit
This bit is the EPROM program enable bit. It can be set to ‘1’ to enable programming only after
E6LAT is set and at least one byte is written to the EPROM. It is not possible to clear this bit using
software but clearing E6LAT will always clear E6PGM.
Table H-2 EPROM control bits description
E6LAT E6PGM
0
1
1
Note:
All combinations are not shown in the above table, since the E6PGM bit is cleared when
the E6LAT bit is at zero, and will result in a read condition.
ECLK
See
Section
4.3.
E1ERA — EEPROM erase/programming bit
Providing the E1LAT and E1PGM bits are at logic one, this bit indicates whether the access to the
EEPROM is for erasing or programming purposes.
1 (set)
An erase operation will take place.
0 (clear) –
A programming operation will take place.
Once the program/erase EEPROM address has been selected, E1ERA cannot be changed.
MC68HC05B6
Rev. 4.1
programming time, the E6LAT bit has to be reset
PROG1
Description
0
Read/execute in EPROM
0
Ready to write address/data to EPROM
1
programming in progress
MC68HC705B32
14
Freescale
H-9