EEWORLDEEWORLDEEWORLD

Part Number

Search

HMNR28V

Description
5.0 or 3.3V, 16K bit (2 Kbit x 8) TIMEKEEPER NVSRAM
File Size271KB,13 Pages
ManufacturerHANBIT Electronics
Websitehttp://www.hbe.co.kr/
Download Datasheet Compare View All

HMNR28V Overview

5.0 or 3.3V, 16K bit (2 Kbit x 8) TIMEKEEPER NVSRAM

HANBit
HMNR28D(V)
5.0 or 3.3V, 16K bit (2 Kbit x 8) TIMEKEEPER NVSRAM
Part No. HMNR28D(V)
GENERAL DESCRIPTION
The HMNR28D(V) TIMEKEEPER SRAM is a 2Kb x 8 non-volatile static RAM and real time clock organized as 2,048
words by 8 bits. The special DIP package provides a fully integrated battery back-up memory and real time clock solution.
The HMNR28D(V) directly replaces industry standard 2Kbit x 8 SRAMs. It also provides the non-volatility of Flash without
any requirement for special WRITE timing or limitations on the number of WRITEs that can be performed.
FEATURES
INTEGRATED 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 VOLTAGES :
(V
PFD
= Power-fail Deselect Voltage)
HMNR28D : V
CC
= 4.5 to 5.5V
4.2V
V
PFD
4.5V
HMNR28DV: V
CC
= 3.0 to 3.6V
2.7V
V
PFD
3.0V
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 2K x 8 SRAMS
SELF-CONTAINED BATTERY and CRYSTAL IN DIP PACKAGE
OPTIONS
w
Timing
70 ns
85 ns
MARKING
-70
-85
PIN ASSIGNMENT
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
Vss
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
Vcc
A8
A9
/WE
/OE
A10
/CE
DQ7
DQ6
DQ5
DQ4
DQ3
24-pin Encapsulated Package
URL : www.hbe.co.kr
Rev. 0.0 (March, 2002)
1
HANBit Electronics Co.,Ltd.

HMNR28V Related Products

HMNR28V HMNR28D HMNR28D-70I HMNR28DV-70I HMNR28DV-85I HMNR28DV-85 HMNR28DV-70 HMNR28D-85I HMNR28D-85 HMNR28D-70
Description 5.0 or 3.3V, 16K bit (2 Kbit x 8) TIMEKEEPER NVSRAM 5.0 or 3.3V, 16K bit (2 Kbit x 8) TIMEKEEPER NVSRAM 5.0 or 3.3V, 16K bit (2 Kbit x 8) TIMEKEEPER NVSRAM 5.0 or 3.3V, 16K bit (2 Kbit x 8) TIMEKEEPER NVSRAM 5.0 or 3.3V, 16K bit (2 Kbit x 8) TIMEKEEPER NVSRAM 5.0 or 3.3V, 16K bit (2 Kbit x 8) TIMEKEEPER NVSRAM 5.0 or 3.3V, 16K bit (2 Kbit x 8) TIMEKEEPER NVSRAM 5.0 or 3.3V, 16K bit (2 Kbit x 8) TIMEKEEPER NVSRAM 5.0 or 3.3V, 16K bit (2 Kbit x 8) TIMEKEEPER NVSRAM 5.0 or 3.3V, 16K bit (2 Kbit x 8) TIMEKEEPER NVSRAM
Smart Medical Reference Design Collection
Reference Design Reference Design Details Schematic/Block Diagram Design Guide24V, 480W (nominal), 720W (peak), 93.5% efficient, reliable AC/DC industrial power supply reference design Get details Dow...
qwqwqw2088 Analogue and Mixed Signal
OR BR register setting problem! Please help!
Can anyone tell me about the BR OR register setting of MPC8260? For example, for the flash connected to CS0, how does BR[BA] represent its base address? How is the value of OR[AM] determined? I have j...
pikky Embedded System
[Discussion] What is the premise of using C language during ARM startup? ?
Phenomenon: When we develop applications using ARM, we will find that the startup code of ARM7 and ARM9 is written in assembly language.Is the C-language function called after the stack is initialized...
05210324kw MCU
The Feelings of an Electronic Loser: CMSIS DAP Emulator
[i=s]This post was last edited by 奸派小智 on 2017-3-19 12:06[/i] [align=left][font=微软雅黑][size=3]When it comes to emulators, the first thing that comes to mind is probably Jlink. Many people may have hear...
反派小智 MCU
I2C of MXCHIP+Core1081
[i=s]This post was last edited by Muziyu on 2014-12-10 22:48[/i] The day before yesterday, I tested the I2C experiment in V1.19.The experimental phenomenon was also obtained:Check the MX1081_IO.H file...
木子鱼 RF/Wirelessly
Smart Micro MM32F103CxT6 Hardware IIC
/*** [url=home.php?mod=spaceuid=247401][url=home.php?mod=spaceuid=159083]@brief[/url] [/url] Configures I2C Device port.* @param ulSpeed I2C baudrate.* @retval None*/ static void Config_I2cDevice ( ui...
火辣西米秀 Domestic Chip Exchange

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 490  711  1943  1775  949  10  15  40  36  20 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号