MC68HC912B32CFU8 Freescale Semiconductor, MC68HC912B32CFU8 Datasheet - Page 328

• Manufacturer Part Number: MC68HC912B32CFU8
• Description: IC MCU 32K FLASH 8MHZ 80-QFP
• Manufacturer: Freescale Semiconductor
• Series: HC12r

Specifications of MC68HC912B32CFU8

• Core Processor: CPU12
• Core Size: 16-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 63
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 768 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Electrical Specifications
19.17 Serial Peripheral Interface (SPI) Timing
328
Num
1. V
10
11
12
13
1
2
3
4
5
6
7
8
9
and 70% V
DD
= 5.0 Vdc ± 10%, V
Operating frequency
SCK period
Enable lead time
Enable lag time
Clock (SCK) high or low time
Sequential transfer delay
Data setup time (inputs)
Data hold time (inputs)
Slave access time
Slave MISO disable time
Data valid (after SCK edge)
Data hold time (outputs)
Rise Time
Fall Time
Master
Slave
Master
Slave
Master
Slave
Master
Slave
Master
Slave
Master
Slave
Master
Slave
Master
Slave
Master
Slave
Master
Slave
Input
Output
Input
Output
DD
levels, unless otherwise noted.
SS
= 0 Vdc, T
Function
A
= T
M68HC12B Family Data Sheet, Rev. 9.1
(1)
L
to T
H
, 200 pF load on all SPI pins, AC timing is shown with respect to 20% V
Symbol
t
WSCK
t
t
t
t
f
Lead
t
t
SCK
LAG
t
t
t
t
DIS
t
OP
HO
RO
t
TD
SU
t
t
FO
HI
RI
FI
A
V
t
t
cyc
cyc
Min
DC
DC
1/2
1/2
1/2
30
30
30
—
—
—
—
—
—
—
—
2
2
1
1
1
0
0
0
− 30
− 30
Freescale Semiconductor
128 t
t
t
cyc
cyc
Max
256
1/2
1/2
50
50
30
30
—
—
—
—
—
—
—
—
—
—
—
—
—
—
1
1
−30
−30
cyc
frequency
E-clock
Unit
t
t
t
t
t
t
t
t
t
t
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
cyc
cyc
sck
cyc
sck
cyc
sck
cyc
cyc
cyc
DD