M68AF031AM70NS6T datasheet, PDF

Datasheet> All Categories > storage> storage> M68AF031AM70NS6T

M68AF031AM70NS6T: Description32K X 8 STANDARD SRAM, 70 ns, PDSO28; Categorystorage storage; File Size143KB，22 Pages; ManufacturerSTMicroelectronics; Websitehttp://www.st.com/

Download Datasheet Parametric View All

M68AF031AM70NS6T Overview

32K X 8 STANDARD SRAM, 70 ns, PDSO28

M68AF031AM70NS6T Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Parts packaging code	TSOP
package instruction	8 X 13.40 MM, PLASTIC, REVERSE, TSOP-28
Contacts	28
Reach Compliance Code	_compli
ECCN code	EAR99
Maximum access time	70 ns
I/O type	COMMON
JESD-30 code	R-PDSO-G28
JESD-609 code	e0
length	11.8 mm
memory density	262144 bi
Memory IC Type	STANDARD SRAM
memory width	8
Number of functions	1
Number of terminals	28
word count	32768 words
character code	32000
Operating mode	ASYNCHRONOUS
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
organize	32KX8
Output characteristics	3-STATE
Package body material	PLASTIC/EPOXY
encapsulated code	TSOP1-R
Encapsulate equivalent code	TSSOP28,.53,22
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, THIN PROFILE
Parallel/Serial	PARALLEL
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
power supply	5 V
Certification status	Not Qualified
reverse pinout	YES
Maximum seat height	1.2 mm
Maximum standby current	0.000006 A
Minimum standby current	2 V
Maximum slew rate	0.05 mA
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	4.5 V
Nominal supply voltage (Vsup)	5 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	Tin/Lead (Sn/Pb)
Terminal form	GULL WING
Terminal pitch	0.55 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
width	8 mm
Base Number Matches	1

Preview

Download Datasheet

View All

M68AF031A

256 Kbit (32K x 8) 5.0V Asynchronous SRAM

FEATURES SUMMARY

■

SUPPLY VOLTAGE: 4.5 to 5.5V

32K x 8 bits SRAM with OUTPUT ENABLE

EQUAL CYCLE and ACCESS TIME: 55, 70ns

LOW STANDBY CURRENT

LOW V

DATA RETENTION: 2V

TRI-STATE COMMON I/O

AUTOMATIC POWER DOWN

PACKAGES

– SO28, PDIP28, TSOP28 Standard and

Reverse Pinout.

– TSOP28 Standard Available in Lead-Free

Version

Figure 1. Packages

SO28 (MS)

PDIP28 (B)

TSOP28 (N)

8 x 13.4mm

TSOP28 (NS)

8 x 13.4 mm (Reverse)

November 2004

1/22

M68AF031A

TABLE OF CONTENTS

FEATURES SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Figure 1. Packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

SUMMARY DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Figure 2.

Table 1.

Figure 3.

Figure 4.

Figure 5.

Figure 6.

Figure 7.

Logic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Signal Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

SO Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

DIP Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

TSOP Connections (Normal) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

TSOP Connections (Reverse) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

MAXIMUM RATING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Table 2. Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

DC AND AC PARAMETERS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Table 3.

Figure 8.

Figure 9.

Table 4.

Table 5.

Operating and AC Measurement Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

AC Measurement I/O Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

AC Measurement Load Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Capacitance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

DC Characteristics (M68AF031A-55 and M68AF031A-70) . . . . . . . . . . . . . . . . . . . . . . . . 9

OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Table 6. Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Read Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 10.Address Controlled, Read Mode AC Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 11.Chip Enable or Output Enable Controlled, Read Mode AC Waveforms. . . . . . . . . . . . . 11

Figure 12.Chip Enable Controlled, Standby Mode AC Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . 11

Table 7. Read and Standby Mode AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Write Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 13.Write Enable Controlled, Write AC Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 14.Chip Enable Controlled, Write AC Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Table 8. Write Mode AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 15.Low V

Data Retention AC Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Table 9. Low V

Data Retention Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

PACKAGE MECHANICAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 16.SO28 - 28 lead Plastic Small Outline, 300 mils body width, Package Outline . . . . . . . . 16

Table 10. SO28 - 28 lead Plastic Small Outline, 300 mils body width, Package Mechanical Data . 16

Figure 17.PDIP28 - 28 pin Plastic DIP, 600 mils width, Package Outline . . . . . . . . . . . . . . . . . . . . 17

Table 11. PDIP28 - 28 pin Plastic DIP, n600 mils width, Package Mechanical Data . . . . . . . . . . . 17

Figure 18.TSOP28 - 28 lead Normal Pinout Plastic Small Outline, Package Outline . . . . . . . . . . . 18

Table 12. TSOP28 - 28 lead Normal Pinout Plastic Small Outline, Package Mechanical Data . . . 18

2/22

Recommended Resources

High-efficiency speaker circuit for rural stage

Principle circuit of current switching class D amplifier

Equal loudness control circuit

Equivalent circuit of cooling system

DM-2 type electric cat circuit circuit

Qili FB-40B wall fan circuit diagram

A button was moved using the SetWindowPos() function, but cannot be hidden using ShowWindow(SW_HIDE). How strange!: A button was moved using the SetWindowPos() function, but cannot be hidden using ShowWindow(SW_HIDE). How strange!...; luomi0105 Embedded System

EEWORLD University ---- Power Tips — Power Management Design Tips Series: Power Tips — Power Management Design Tips Series : https://training.eeworld.com.cn/course/3902...; hi5 Power technology

In the timer mode selection, 0: 32-bit free count 1: 16-bit reload count What is the difference between these two modes?: Timer mode selection 0: 32-bit free counting 1: 16-bit reload countingWhat is the difference between free counting and overload counting modes?...; 深圳小花 MCU

Ask a stupid question! How does a hardware interrupt jump to software code?: I am a newbie, so I have a stupid question. How does a hardware interrupt jump to software code? For example, if I have a keyboard and press it, how does the CPU jump to the code in the program throug...; GAOYUYOU Embedded System

How to implement AlphaBlend in Wince 5.0?: How to implement AlphaBlend in Wince 5.0? Requirements OS Versions: Microsoft? Windows CE? 5.0 and later. Header: Windows.h. Link Library: Coredll.lib. After adding the above lib, the compilation stil...; flyjackie Embedded System

【诚聘】Analog Custom Layout Engineer: The Shanghai R&D center of LSI, an American company, is recruiting talents in the field of storage and communications with high salaries. The salary and benefits are generous, and some employees will ...; asic_tapeout Recruitment

Shortcut: S0 S1 S2 S3 S4 S5 S6 S7 S8 S9 SA SB SC SD SE SF SG SH SI SJ SK SL SM SN SO SP SQ SR SS ST SU SV SW SX SY SZ T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 TA TB TC TD TE TF TG TH TI TJ TK TL TM TN TO TP TQ TR TS TT TU TV TW TX TY TZ U0 U1 U2 U3 U4 U6 U7 U8 UA UB UC UD UE UF UG UH UI UJ UK UL UM UN UP UQ UR US UT UU UV UW UX UZ V0 V1 V2 V3 V4 V5 V6 V7 V8 V9 VA VB VC VD VE VF VG VH VI VJ VK VL VM VN VO VP VQ VR VS VT VU VV VW VX VY VZ W0 W1 W2 W3 W4 W5 W6 W7 W8 W9 WA WB WC WD WE WF WG WH WI WJ WK WL WM WN WO WP WR WS WT WU WV WW WY X0 X1 X2 X3 X4 X5 X7 X8 X9 XA XB XC XD XE XF XG XH XK XL XM XN XO XP XQ XR XS XT XU XV XW XX XY XZ Y0 Y1 Y2 Y4 Y5 Y6 Y9 YA YB YC YD YE YF YG YH YK YL YM YN YP YQ YR YS YT YX Z0 Z1 Z2 Z3 Z4 Z5 Z6 Z8 ZA ZB ZC ZD ZE ZF ZG ZH ZJ ZL ZM ZN ZP ZR ZS ZT ZU ZV ZW ZX ZY

Popular Components