M48T512Y-85PM1 datasheet, PDF - EEWORLD Datasheet

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M48T512Y-85PM1: Description0 TIMER(S), REAL TIME CLOCK, PDIP32; Categorysemiconductor The embedded processor and controller; File Size326KB，23 Pages; ManufacturerSTMicroelectronics; Websitehttp://www.st.com/

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M48T512Y-85PM1 Overview

0 TIMER(S), REAL TIME CLOCK, PDIP32

M48T512Y-85PM1 Parametric

Parameter Name	Attribute value
Number of functions	1
Number of terminals	32
Maximum operating temperature	70 Cel
Minimum operating temperature	0.0 Cel
Maximum supply/operating voltage	5.5 V
Minimum supply/operating voltage	4.5 V
Rated supply voltage	5 V
External data bus width	8
Processing package description	ROHS COMPLIANT, Plastic, DIP-32
Lead-free	Yes
EU RoHS regulations	Yes
state	DISCONTINUED
Craftsmanship	CMOS
packaging shape	Rectangle
Package Size	IN-line
Terminal form	PIN/PEG
Terminal spacing	2.54 mm
terminal coating	NOT SPECIFIED
Terminal location	pair
Packaging Materials	Plastic/Epoxy
Temperature level	COMMERCIAL
Maximum FCLK clock frequency	0.0320 MHz
Information access methods	Parallel, direct address
Microprocessor type	Real Time Clock
Number of timers	0.0

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M48T512Y

M48T512V

5.0 or 3.3 V, 4 Mbit (512 Kbit x 8) TIMEKEEPER

SRAM

Not recommended for new design

Features

■

Integrated ultra low power SRAM, real-time

clock, power-fail control circuit, battery, and

crystal

BCD coded year, month, day, date, hours,

minutes, and seconds

Automatic power-fail chip deselect and WRITE

protection

WRITE protect voltages:

PFD

= power-fail deselect voltage)

– M48T512Y: V

= 4.5 to 5.5 V;

4.2 V

≤

PFD

≤

4.5 V

– M48T512V: V

= 3.0 to 3.6 V;

2.7 V

≤

PFD

≤

3.0 V

Conventional SRAM operation; unlimited

WRITE cycles

■

Software controlled clock calibration for high

accuracy applications

10 years of data retention and clock operation

in the absence of power

Pin and function compatible with industry

standard 512 K x 8 SRAMS

Self-contained battery and crystal in DIP

package

RoHS compliant

– Lead-free second level interconnect

PMDIP32 module

June 2011

Doc ID 5747 Rev 7

1/23

www.st.com

This is information on a product still in production but not recommended for new designs.

M48T512Y, M48T512V

List of tables

Table 1.

Table 2.

Table 3.

Table 4.

Table 5.

Table 6.

Table 7.

Table 8.

Table 9.

Table 10.

Table 11.

Table 12.

Table 13.

Table 14.

Signal names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

READ mode AC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

WRITE mode AC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Operating and AC measurement conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

DC characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Power down/up AC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Power down/up trip points DC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

PMDIP32 – 32-pin plastic module DIP, package mechanical data. . . . . . . . . . . . . . . . . . . 20

Ordering information scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Doc ID 5747 Rev 7

3/23

M48T512Y-85PM1 Related Products

	M48T512Y-85PM1	M48T512V-70PM1	M48T512V	M48T512Y	M48T512Y_10
Description	0 TIMER(S), REAL TIME CLOCK, PDIP32	0 TIMER(S), REAL TIME CLOCK, PDIP32	0 TIMER(S), REAL TIME CLOCK, PDIP32	0 TIMER(S), REAL TIME CLOCK, PDIP32	0 TIMER(S), REAL TIME CLOCK, PDIP32
Number of terminals	32	32	32	32	32
Maximum operating temperature	70 Cel	70 °C	70 Cel	70 Cel	70 Cel
Minimum operating temperature	0.0 Cel	-	0.0 Cel	0.0 Cel	0.0 Cel
External data bus width	8	8	8	8	8
Terminal form	PIN/PEG	PIN/PEG	PIN/PEG	PIN/PEG	PIN/PEG
Terminal location	pair	DUAL	pair	pair	pair
Temperature level	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL
Information access methods	Parallel, direct address	PARALLEL, DIRECT ADDRESS	Parallel, direct address	Parallel, direct address	Parallel, direct address
Number of functions	1	-	1	1	1
Maximum supply/operating voltage	5.5 V	-	5.5 V	5.5 V	5.5 V
Minimum supply/operating voltage	4.5 V	-	4.5 V	4.5 V	4.5 V
Rated supply voltage	5 V	-	5 V	5 V	5 V
Processing package description	ROHS COMPLIANT, Plastic, DIP-32	-	ROHS COMPLIANT, Plastic, DIP-32	ROHS COMPLIANT, Plastic, DIP-32	ROHS COMPLIANT, Plastic, DIP-32
Lead-free	Yes	-	Yes	Yes	Yes
EU RoHS regulations	Yes	-	Yes	Yes	Yes
state	DISCONTINUED	-	DISCONTINUED	DISCONTINUED	DISCONTINUED
Craftsmanship	CMOS	-	CMOS	CMOS	CMOS
packaging shape	Rectangle	-	Rectangle	Rectangle	Rectangle
Package Size	IN-line	-	IN-line	IN-line	IN-line
Terminal spacing	2.54 mm	-	2.54 mm	2.54 mm	2.54 mm
terminal coating	NOT SPECIFIED	-	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED
Packaging Materials	Plastic/Epoxy	-	Plastic/Epoxy	Plastic/Epoxy	Plastic/Epoxy
Maximum FCLK clock frequency	0.0320 MHz	-	0.0320 MHz	0.0320 MHz	0.0320 MHz
Microprocessor type	Real Time Clock	-	Real Time Clock	Real Time Clock	Real Time Clock
Number of timers	0.0	-	0.0	0.0	0.0

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