Specification	DS1245AB-120+

Access Time	120 ns
Memory Format	NVSRAM
Memory Interface	Parallel
Memory Organization	128 K
Memory Size	1 Mbit
Memory Type	Non-Volatile
Mounting Type	Through Hole
Operating Temperature [Max]	70 °C
Operating Temperature [Min]	0 °C
Package / Case	32-DIP Module
Package / Case	15.24 mm
Package / Case	0.6 in
Supplier Device Package	32-EDIP
Technology	NVSRAM (Non-Volatile SRAM)
Voltage - Supply [Max]	5.25 V
Voltage - Supply [Min]	4.75 V
Write Cycle Time - Word, Page	120 ns

DS1245AB Series

1024k Nonvolatile SRAM

Part	Access Time	Package / Case	Supplier Device Package	Memory Size	Write Cycle Time - Word, Page	Technology	Memory Interface	Voltage - Supply [Min]	Voltage - Supply [Max]	Operating Temperature [Min]	Operating Temperature [Max]	Memory Organization	Memory Type	Mounting Type	Memory Format	Package / Case	Package / Case	Write Cycle Time - Word, Page [y]	Write Cycle Time - Word, Page [x]
Analog Devices Inc./Maxim Integrated DS1245ABP-70	70 ns	34-PowerCap™ Module	34-PowerCap Module	1 Mbit	70 ns	NVSRAM (Non-Volatile SRAM)	Parallel	4.75 V	5.25 V	0 °C	70 °C	128 K	Non-Volatile	Surface Mount	NVSRAM
Analog Devices Inc./Maxim Integrated DS1245AB-85	85 ns	32-DIP Module	32-EDIP	1 Mbit	85 ns	NVSRAM (Non-Volatile SRAM)	Parallel	4.75 V	5.25 V	0 °C	70 °C	128 K	Non-Volatile	Through Hole	NVSRAM	15.24 mm	0.6 in
Analog Devices Inc./Maxim Integrated DS1245AB-70	70 ns	32-DIP Module	32-EDIP	1 Mbit	70 ns	NVSRAM (Non-Volatile SRAM)	Parallel	4.75 V	5.25 V	0 °C	70 °C	128 K	Non-Volatile	Through Hole	NVSRAM	15.24 mm	0.6 in
Analog Devices Inc./Maxim Integrated DS1245ABP-70IND+	70 ns	34-PowerCap™ Module	34-PowerCap Module	1 Mbit	70 ns	NVSRAM (Non-Volatile SRAM)	Parallel	4.75 V	5.25 V	-40 ¯C	85 C	128 K	Non-Volatile	Surface Mount	NVSRAM
Analog Devices Inc./Maxim Integrated DS1245AB-120+	120 ns	32-DIP Module	32-EDIP	1 Mbit	120 ns	NVSRAM (Non-Volatile SRAM)	Parallel	4.75 V	5.25 V	0 °C	70 °C	128 K	Non-Volatile	Through Hole	NVSRAM	15.24 mm	0.6 in
Analog Devices Inc./Maxim Integrated DS1245ABP-70IND	70 ns	34-PowerCap™ Module	34-PowerCap Module	1 Mbit	70 ns	NVSRAM (Non-Volatile SRAM)	Parallel	4.75 V	5.25 V	-40 ¯C	85 C	128 K	Non-Volatile	Surface Mount	NVSRAM
Analog Devices Inc./Maxim Integrated DS1245AB-100	100 ns	32-DIP Module	32-EDIP	1 Mbit		NVSRAM (Non-Volatile SRAM)	Parallel	4.75 V	5.25 V	0 °C	70 °C	128 K	Non-Volatile	Through Hole	NVSRAM	15.24 mm	0.6 in	100 ns	100 ns
Analog Devices Inc./Maxim Integrated DS1245AB-85+	85 ns	32-DIP Module	32-EDIP	1 Mbit	85 ns	NVSRAM (Non-Volatile SRAM)	Parallel	4.75 V	5.25 V	0 °C	70 °C	128 K	Non-Volatile	Through Hole	NVSRAM	15.24 mm	0.6 in
Analog Devices Inc./Maxim Integrated DS1245ABP-100	100 ns	34-PowerCap™ Module	34-PowerCap Module	1 Mbit		NVSRAM (Non-Volatile SRAM)	Parallel	4.75 V	5.25 V	0 °C	70 °C	128 K	Non-Volatile	Surface Mount	NVSRAM			100 ns	100 ns
Analog Devices Inc./Maxim Integrated DS1245AB-70+	70 ns	32-DIP Module	32-EDIP	1 Mbit	70 ns	NVSRAM (Non-Volatile SRAM)	Parallel	4.75 V	5.25 V	0 °C	70 °C	128 K	Non-Volatile	Through Hole	NVSRAM	15.24 mm	0.6 in

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$	Updated

Digikey	Tube	1	$ 55.40	<4d
		11	$ 50.98
		33	$ 48.99
		55	$ 48.08
		110	$ 46.86
Newark	Each	1	$ 41.93	1m+
		5	$ 40.64
		10	$ 39.35
		25	$ 36.69

Description

General part information

DS1245AB Series

The DS1245 1024k Nonvolatile (NV) SRAMs are 1,048,576-bit, fully static, nonvolatile SRAMs organized as 131,072 words by 8 bits. Each complete NV SRAM has a self-contained lithium energy source and control circuitry which constantly monitors VCCfor an out-of-tolerance condition. When such a condition occurs, the lithium energy source is automatically switched on and write protection is nconditionally enabled to prevent data corruption. DIP-package DS1245 devices can be used in place of existing 128k x 8 static RAMs directly conforming to the popular bytewide 32-pin DIP standard. DS1245 devices in the PowerCap Module package are directly surface mountable and are normally paired with a DS9034PC PowerCap to form a complete Nonvolatile SRAM module. There is no limit on the number of write cycles that can be executed and no additional support circuitry is required for microprocessor interfacing.

Documents

Technical documentation and resources

DS1245AB-DS1245Y: 1024k Nonvolatile SRAM Data Sheet (Rev.4)

Data Sheet