PSD934F210MIT View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

PSD934F210MIT

Flash PSD, 3.3V Supply, for 8-bit MCUs 2 Mbit + 256 Kbit Dual Flash Memories and 64 Kbit SRAM

STMicroelectronics 

PSD834F2V

Figure 16. An Example of a Typical 8-bit Multiplexed Bus Interface

MCU

WR

RD

BHE

ALE

RESET

AD[ 7:0]

A[ 15:8]

PSD

ADIO

PORT

WR (CNTRL0)

RD (CNTRL1)

BHE (CNTRL2)

RST

ALE (PD0)

PORT D

PORT

A

PORT

B

PORT

C

A[7: 0]

(OPTIONAL)

A[ 15: 8]

(OPTIONAL)

AI02878C

PSD Interface to a Non-Multiplexed 8-Bit Bus.

Figure 17 shows an example of a system using a

MCU with an 8-bit non-multiplexed bus and a

PSD. The address bus is connected to the ADIO

Port, and the data bus is connected to Port A. Port

A is in tri-state mode when the PSD is not access-

ed by the MCU. Should the system address bus

exceed sixteen bits, Ports B, C, or D may be used

for additional address inputs.

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