M68AF031AL70N1E datasheet, PDF

Datasheet> All Categories > storage> storage> M68AF031AL70N1E

M68AF031AL70N1E: Description32K X 8 STANDARD SRAM, 70 ns, PDSO28; Categorystorage storage; File Size143KB，22 Pages; ManufacturerSTMicroelectronics; Websitehttp://www.st.com/; Environmental Compliance

Download Datasheet Parametric View All

M68AF031AL70N1E Overview

32K X 8 STANDARD SRAM, 70 ns, PDSO28

M68AF031AL70N1E Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	STMicroelectronics
Parts packaging code	TSOP
package instruction	8 X 13.40 MM, LEAD FREE, PLASTIC, 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	e3/e6
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	70 °C
Minimum operating temperature
organize	32KX8
Output characteristics	3-STATE
Package body material	PLASTIC/EPOXY
encapsulated code	TSOP1
Encapsulate equivalent code	TSSOP28,.53,22
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, THIN PROFILE
Parallel/Serial	PARALLEL
Peak Reflow Temperature (Celsius)	260
power supply	5 V
Certification status	Not Qualified
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	COMMERCIAL
Terminal surface	TIN/TIN BISMUTH
Terminal form	GULL WING
Terminal pitch	0.55 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
width	8 mm

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

Three-phase power supply phase sequence dedicated circuit

Huaxing brand BC-150, BY150C refrigerator circuit

thyristor relaxation flasher

Series circuit using multiple TCA965

Leakage alarm voltage regulator

555 simple automatic exposure circuit

Shortcut: 00 01 02 03 04 05 06 07 08 09 0A 0C 0F 0J 0L 0M 0R 0S 0T 0Z 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 1H 1K 1M 1N 1P 1S 1T 1V 1X 1Z 20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 2G 2K 2M 2N 2P 2Q 2R 2S 2T 2W 2Z 30 31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F 3G 3H 3J 3K 3L 3M 3N 3P 3R 3S 3T 3V 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4M 4N 4P 4S 4T 50 51 52 53 54 55 56 57 58 59 5A 5B 5C 5E 5G 5H 5K 5M 5N 5P 5S 5T 5V 60 61 62 63 64 65 66 67 68 69 6A 6C 6E 6F 6M 6N 6P 6R 6S 6T 70 71 72 73 74 75 76 77 78 79 7A 7B 7C 7M 7N 7P 7Q 7V 7W 7X 80 81 82 83 84 85 86 87 88 89 8A 8D 8E 8L 8N 8P 8S 8T 8W 8Y 8Z 90 91 92 93 94 95 96 97 98 99 9A 9B 9C 9D 9F 9G 9H 9L 9S 9T 9W

Popular Components