MC68HC711E9VFN2 Freescale Semiconductor, MC68HC711E9VFN2 Datasheet - Page 38

• Manufacturer Part Number: MC68HC711E9VFN2
• Description: IC MCU 12K OTP 2MHZ 52-PLCC
• Manufacturer: Freescale Semiconductor
• Series: HC11r

Specifications of MC68HC711E9VFN2

• Core Processor: HC11
• Core Size: 8-Bit
• Speed: 2MHz
• 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 ~ 105°C
• Package / Case: 52-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Pin Descriptions
2.10 V
2.11 STRA/AS
2.12 STRB/R/W
Technical Data
38
RL
and V
RH
These two inputs provide the reference voltages for the analog-to-digital
(A/D) converter circuitry:
For proper A/D converter operation:
The strobe A (STRA) and address strobe (AS) pin performs either of two
separate functions, depending on the operating mode:
AS can be used to demultiplex the address and data signals at port C.
Refer to
The strobe B (STRB) and read/write (R/W) pin act as either an output
strobe or as a data bus direction indicator, depending on the operating
mode.
In single-chip operating mode, STRB acts as a programmable strobe for
handshake with other parallel devices. Refer to
Input/Output (I/O) Ports
In expanded multiplexed operating mode, R/W is used to indicate the
direction of transfers on the external data bus. A low on the R/W pin
indicates data is being written to the external data bus. A high on this pin
•
•
•
•
•
•
V
V
V
V
In single-chip mode, STRA performs an input handshake (strobe
input) function.
In the expanded multiplexed mode, AS provides an address
strobe function.
RL
RH
RH
RL
Section 4. Operating Modes and On-Chip
is the low reference, typically 0 Vdc.
and V
is the high reference.
should be at least 3 Vdc greater than V
RH
Pin Descriptions
should be between V
for further information.
SS
and V
M68HC11E Family — Rev. 3.2
Section 6. Parallel
DD
RL
.
.
Memory.
MOTOROLA