TMP90C041A View Datasheet(PDF) - Toshiba

Part Name

Description

Manufacturer

TMP90C041A

CMOS 8-Bit Microcontrollers

Toshiba 

TMP90C041A

Figure 2.1 (2) shows pin assignment of the TMP90CM40F.

Figure 2.1 (2). Pin Assignment (Flat Package)

2.2 Pin Names and Functions

The names of input/output pins and their functions are summarized

in Table 2.2.

Pin Name

D0 ~ D7

A0 ~ A7

A8 ~ A15

P30

/RxD

P31

/RxD

P32

/TxD

/RTS

/SCLK

P33

/TxD

P34

/CTS

RD

WR

P37

/WAIT

No. of pins

8

8

8

1

1

1

1

1

1

1

1

Table 2.2 Pin Names and Functions (1/2)

I/O 3 states

3 states

Output

Output

Input

Input

Output

Output

Input

Output

Output

Input

Function

Data bus: Also functions as 8-bit bidirectional data bus for external memory

Address bus: The lower 8 bits address bus for external memory

Address bus: The upper 8 bits address bus for external memory

Port 30: 1-bit input port

Receiver Serial Data

Port 31: 1-bit input port

Receiver Serial Data

Port 32: 1-bit input port

Transmitter Serial Data

Request to send Serial Data

Serial clock output

Port 33: 1-bit output port

Transmitter Serial Data

Port 34: 1-bit input port

Clear to send Serial Data

Read: Generates strobe signal for reading external memory

Write: Generates strobe signal for writing into external memory

Port 37: 1-bit input port

Wait: Input pin for connecting slow speed memory or peripheral LSI

4/12

TOSHIBA CORPORATION

Share Link: