MB91F158 datasheet(2/90 Pages) FUJITSU

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MB91F158

Internal ROM

FLASH products : 510 Kbytes

Internal RAM

2 Kbytes

Internal Data RAM

6 Kbytes

Bit Search Module

Searches in one cycle for the position of the bit that changes from the MSB in one word to the initial I/O.

Timers

• 16-bit OCU

× 4 channels, ICU × 4 channels, Free-run timer × 1 channel

• 8/16-bit up/down timer/counter (8-bit

× 2 channels or 16-bit × 1 channel)

• 16-bit PPG timer

× 4 channels. The output pulse cycle and duty can be varied as desired

• 16-bit reload timer

× 2 channels

D/A Converter

•8-bit

× 3 channels

A/D Converter (Sequential Comparison Type)

•10-bit

× 8 channels

• Sequential conversion method (conversion time : 5.2

µs@32 MHz)

• Single conversion or scan conversion can be selected, and one-shot or continuous or stop conversion mode

can be set respectively.

• Conversion starting function by hardware/software.

10. Serial I/O

•UART

× 2 channels. Any of them is capable of serial transfer in sync with clock attached with the LSB/MSB

switching function.

• Serial data output and serial clock output are selectable by push-pull/open drain software.

• A 16-bit timer (U-timer) is contained as a dedicated baud rate generator allowing any baud rate to be generated.

11. Clock Switching Function

• Gear function : Operating clock ratios to the basic clock can be set independently for the CPU and peripherals

from four types, 1 : 1, 1 : 2, 1 : 4 or 1 : 8.

12. Interrupt Controller

External interrupt input (16 channels in total) :

• Allows the rising edge/falling edge/H level/L level to be set.

Internal interrupt factors :

• Interrupt by resources and delay interrupt

13. Others

• Reset cause : Power on reset/watchdog timer/software reset/external reset

• Low power consumption mode : Sleep/stop

• Package : 120-pin LQFP

• CMOS technology (0.35

µm)

• Power supply voltage : 3.2 V to 3.5 V

• Operation frequency upper limit

CPU

: 32 MHz

Peripheral circuit : 32 MHz

External bus

: 25 MHz

MB91F158 Datasheet(PDF) 2 Page - fujitsu semiconductor

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