PSD934210MT View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

PSD934210MT

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

STMicroelectronics 

Figure 42. Write Timing

ALE / AS

A/D

MULTIPLEXED

BUS

ADDRESS

NON-MULTIPLEXED

BUS

DATA

NON-MULTIPLEXED

BUS

CSI

WR

(DS)

E

R/ W

PSD834F2V

tAVLX

t LXAX

t LVLX

ADDRESS

VALID

tAVWL

ADDRESS

VALID

tSLWL

DATA

VALID

DATA

VALID

t WLWH

tDVWH

tTHEH

t EHEL

t WHDX

t WHAX

t ELTL

tAVPV

ADDRESS OUT

t WLMV

t WHPV

STANDARD

MCU I/O OUT

AI02896

Table 49. Program, Write and Erase Times

Symbol

Parameter

Min.

Typ.

Flash Program

8.5

Flash Bulk Erase1 (pre-programmed)

3

Flash Bulk Erase (not pre-programmed)

5

tWHQV3

Sector Erase (pre-programmed)

1

tWHQV2

Sector Erase (not pre-programmed)

2.2

tWHQV1

Byte Program

14

Program / Erase Cycles (per Sector)

100,000

tWHWLO

Sector Erase Time-Out

100

tQ7VQV

DQ7 Valid to Output (DQ7-DQ0) Valid (Data Polling)2

Note: 1. Programmed to all zero before erase.

2. The polling status, DQ7, is valid tQ7VQV time units before the data byte, DQ0-DQ7, is valid for reading.

Max.

30

30

1200

30

Unit

s

s

s

s

s

µs

cycles

µs

ns

77/89

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