μ
PD784035, 784036, 784037, 784038
8
Series
μ
PD784038 sub-series
μ
PD784038Y sub-series
μ
PD784026 sub-series
μ
PD78234 sub-series
Item
Number of basic instructions
(mnemonics)
113
65
Minimum instruction execution
time
125 ns
(at 32 MHz)
160 ns
(at 25 MHz)
333 ns
(at 12 MHz)
Memory space (program/data)
1M byte in total
64K bytes/1M byte
Timer/counter
16-bit timer/counter
×
1
8/16-bit timer/counter
×
2
8/16-bit timer
×
1
16-bit timer/counter
×
1
8-bit timer/counter
×
2
8-bit timer
×
1
Clock output function
Available
Unavailable
Watchdog timer
Available
Unavailable
Serial interface
UART/IOE (3-wire serial I/O)
×
2 channels
CSI (3-wire serial I/O, 2-wire
serial I/O, I
2
C bus
Note
)
×
1 channel
UART/IOE (3-wire serial I/O)
×
2 channels
CSI (3-wire serial I/O, SBI)
×
1 channel
UART
×
1 channel
CSI (3-wire serial I/O, SBI)
×
1 channel
Interrupt
Context switching
Available
Unavailable
Priority
4 levels
2 levels
Standby function
3 modes
(HALT, STOP, IDLE)
2 modes (HALT, STOP)
Operation clock switching
Selectable from f
XX
/2, f
XX
/4, f
XX
/8, or f
XX
/16
Fixed to f
XX
/2
Pin
functions
MODE pin
Unavailable
To specify ROM-less mode
(always in the high level for
the
μ
PD78233 or
μ
PD78237)
TEST pin
Pin for testing the device
Low level during ordinary use
Unavailable
Package
80-pin plastic QFP
(14
×
14
×
2.7 mm)
80-pin plastic QFP
(14
×
14
×
1.4 mm)
80-pin plastic TQFP
(fine pitch) (12
×
12 mm)
80-pin ceramic WQFN
(14
×
14 mm):
for the
μ
PD78P4038 and
μ
PD78P4038Y only
80-pin plastic QFP
(14
×
14
×
2.7 mm)
80-pin plastic TQFP
(fine pitch) (12
×
12 mm):
for the
μ
PD784021 only
80-pin ceramic WQFN
(14
×
14 mm):
for the
μ
PD78P4026 only
80-pin plastic QFP
(14
×
14
×
2.7 mm)
94-pin plastic QFP
(20
×
20 mm)
84-pin plastic QFJ
(1,150
×
1,150 mil)
94-pin ceramic WQFN
(20
×
20 mm):
for the
μ
PD78P238 only
2. MAIN DIFFERENCES BETWEEN
μ
PD784038,
μ
PD784038Y,
μ
PD784026, AND
μ
PD78234 SUB-
SERIES
Note
For the
μ
PD784038Y sub-series only.