Specifications
PE7/D7
PE6/D6
PE5/D5
PE4/D4
PE3/D3
PE2/D2
PE1/D1
PE0/D0
Internal data bus
PD7/D15
PD6/D14
PD5/D13
PD4/D12
PD3/D11
PD2/D10
PD1/D9
PD0/D8
CVCC
VCC
VSS
VSS
PA3/A19/SCK2
PA2/A18/RxD2
PA1/A17/TxD2
PA0/A16
PB7/A15/TIOCB5
PB6/A14/TIOCA5
PB5/A13/TIOCB4
PB4/A12/TIOCA4
PB3 / A11/TIOCD3
PB2/A10/TIOCC3
PB1/A9/TIOCB3
PB0/A8/TIOCA3
PC7/A7
PC6/A6
PC5/A5
PC4/A4
PC3/A3
PC2/A2
PC1/A1
PC0/A0
P36
P35/SCK1/SCL0/IRQ5
P34/RxD1/SDA0
P33/TxD1/SCL1
P32/SCK0/SDA1/IRQ4
P31/RxD0
P30/TxD0
P97/DA1
P96/DA0
P47/AN7
P46/AN6
P45/AN5
P44/AN4
P43/AN3
P42/AN2
P41/AN1
P40/AN0
Vref
AVCC
AVSS
P10/TIOCA0/A20
P11/TIOCB0/A21
P12/TIOCC0/TCLKA/A22
P13/TIOCD0/TCLKB/A23
P14/TIOCA1/IRQ0
P15/TIOCB1/TCLKC
P16/TIOCA2/IRQ1
P17/TIOCB2/TCLKD
P70/TMRI01/TMCI01/CS4
P71/TMRI23/TMCI23/CS5
P72/TMO0/CS6
P73/TMO1/CS7
P74/TMO2/MRES
P75/TMO3/SCK3
P76/RxD3
P77/TxD3
PG4/CS0
PG3/CS1
PG2/CS2
PG1/CS3/IRQ7
PG0/IRQ6
PF7/ø
PF6/AS
PF5/RD
PF4/HWR
PF3/LWR/ADTRG/IRQ3
PF2/WAIT
PF1/BACK/BUZZ
PF0/BREQ/IRQ2
PC break controller
(2 channels)
ROM
RAM
TPU (6 channels)
MD2
MD1
MD0
EXTAL
XTAL
OSC1
OSC2
STBY
RES
NMI
FWE
H8S/2000 CPU
DTC
Interrupt controller
Internal address bus
SCI (4 channels)
D/A converter (2 channels)
8-bit timer (4 channels)
A/D converter (8 channels)
WDT0
I
2
C bus interface
[option]
Peripheral data bus
Peripheral address bus
Subclock
clock pulse
generator
System
clock pulse
generator
Bus controller
WDT1
(subclock
operation)
Port G Port F
Port APort BPort CPort 3Port 9
Port 4Port 1 Port 7
Port D Port E
33
PE7/D7
PE6/D6
PE5/D5
PE4/D4
PE3/D3
PE2/D2
PE1/D1
PE0/D0
Internal data bus
Peripheral data bus
Peripheral address bus
PD7/D15
PD6/D14
PD5/D13
PD4/D12
PD3/D11
PD2/D10
PD1/D9
PD0/D8
Port D
VCC
VCC
VSS
VSS
PA3/A19/SCK2
PA2/A18/RxD2
PA1/A17/TxD2
PA0/A16
PB7/A15/TIOCB5
PB6/A14/TIOCA5
PB5/A13/TIOCB4
PB4/A12/TIOCA4
PB3 / A11/TIOCD3
PB2/A10/TIOCC3
PB1/A9/TIOCB3
PB0/A8/TIOCA3
PC7/A7
PC6/A6
PC5/A5
PC4/A4
PC3/A3
PC2/A2
PC1/A1
PC0/A0
P36
P35/SCK1/IRQ5
P34/RxD1
P33/TxD1
P32/SCK0/IRQ4
P31/RxD0
P30/TxD0
P97/DA1
P96/DA0
P47/AN7
P46/AN6
P45/AN5
P44/AN4
P43/AN3
P42/AN2
P41/AN1
P40/AN0
Vref
AVCC
AVSS
P10/TIOCA0/A20
P11/TIOCB0/A21
P12/TIOCC0/TCLKA/A22
P13/TIOCD0/TCLKB/A23
P14/TIOCA1/IRQ0
P15/TIOCB1/TCLKC
P16/TIOCA2/IRQ1
P17/TIOCB2/TCLKD
P70/TMRI01/TMCI01/CS4
P71/CS5
P72/TMO0/CS6
P73/TMO1/CS7
P74/MRES
P75/SCK3
P76/RxD3
P77/TxD3
PG4/CS0
PG3/CS1
PG2/CS2
PG1/CS3/IRQ7
PG0/IRQ6
PF7/ø
PF6/AS
PF5/RD
PF4/HWR
PF3/LWR/ADTRG/IRQ3
PF2/WAIT
PF1/BACK/BUZZ
PF0/BREQ/IRQ2
PC break controller
(2 channels)
ROM
RAM
TPU (6 channels)
SCI (4 channels)
D/A converter (2 channels)
8-bit timer (2 channels)
A/D converter (8 channels)
MD2
MD1
MD0
EXTAL
XTAL
OSC1
OSC2
STBY
RES
NMI
FWE
H8S/2000 CPU
DTC
WDT0
WDT1
(subclock
operation)
Interrupt controller
Port E
Port 4Port 1 Port 7
Internal address bus
Subclock
clock pulse
generator
System
clock pulse
generator
Port APort B
Bus controller
Port CPort 3Port 9
Port G Port F
H8S/2237
Super low power, low voltage H8S
with large RAM
■ power consumption as low as
14mA (typ.) at 3V/10MHz
■ excellent power management,
incl. 32KHz subclock
■ large RAM to avoid using
external busses
■ 4 USART (SCI), supporting a
subset of ISO7816-3
■ pin compatible low cost variant
H8S/222x
■ mask derivatives available down
to 2.2V operation
H8S/2238
3rd Generation 256K Flash, 16K
RAM, low power H8S
■ nearly pin compatible with
H8S/2237 series
■ advanced on-chip power supply
for 3 to 5V operation
■ very low power consumption and
excellent power management
■ large RAM to avoid using
external busses
■ low cost mask derivatives
(H8S/222x), available in 2.2V