DS1386-32-120 Maxim Integrated Products, DS1386-32-120 Datasheet

no-image

DS1386-32-120

Manufacturer Part Number
DS1386-32-120
Description
IC TIMEKEEPER RAM 256K 32-DIP
Manufacturer
Maxim Integrated Products
Type
Clock/Calendar/NVSRAMr
Datasheet

Specifications of DS1386-32-120

Memory Size
256K (32K x 8)
Time Format
HH:MM:SS:hh (12/24 hr)
Date Format
YY-MM-DD-dd
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Through Hole
Package / Case
32-DIP Module (600 mil), 32-EDIP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
DS138632120

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
DS1386-32-120
Manufacturer:
DALLAS
Quantity:
20 000
Part Number:
DS1386-32-120(+)
Manufacturer:
SIL
Quantity:
650
ORDERING INFORMATION
+ Denotes a lead-free/RoHS-compliant device.
*
GENERAL DESCRIPTION
The DS1386 is a nonvolatile static RAM with a
full-function
watchdog timer, and interval timer that are all
accessible in a byte-wide format. The DS1386
contains a lithium energy source and a quartz
crystal, which eliminates the need for any external
circuitry. Data contained within 8k or 32k by 8-bit
memory and the timekeeping registers can be read
or written in the same manner as byte-wide static
RAM. The timekeeping registers are located in the
first 14 bytes of memory space. Data is maintained
in the RAMified timekeeper by intelligent control
circuitry, which detects the status of V
protects memory when V
lithium energy source can maintain data and real
time for over ten years in the absence of V
Timekeeper information includes hundredths of
seconds, seconds, minutes, hours, day, date, month,
and year. The date at the end of the month is
automatically adjusted for months with less than 31
days, including correction for leap year.
The RAMified timekeeper operates in either 24-
hour or 12-hour format with an AM/PM indicator.
The watchdog timer provides alarm interrupts and
interval timing between 0.01 seconds and 99.99
seconds. The real-time alarm provides for preset
times of up to one week. Interrupts for both
watchdog and RTC operate when the system is
powered down. Either can provide system “wake-
up” signals.
www.maxim-ic.com
DS9034PCX PowerCap required (must be ordered separately).
DS1386-8-120
DS1386-8-120+
DS1386-32-120
DS1386-32-120+
DS1386P-8-120
DS1386P-8-120+
DS1386P-32-120
DS1386P-32-120+
PART
real-time
CC
TEMP RANGE
clock
is out of tolerance. The
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
(RTC),
CC
and write
alarm,
CC
VOLTAGE (V)
.
RAMified Watchdog Timekeeper
1 of 21
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
FEATURES
Pin Configurations appear at end of data sheet.
8kB or 32kB of User NV RAM
Integrated NV SRAM, Real-Time Clock,
Crystal, Power-Fail Control Circuit, and
Lithium Energy Source
Totally Nonvolatile With Over 10 Years of
Operation in the Absence of Power
Watchdog Timer Restarts an Out-Of-
Control Processor
Alarm Function Schedules Real-Time
Related Activities such as System Wakeup
Programmable Interrupts and Square-
Wave Output
All Registers are Individually Addressable
via the Address and Data Bus
Interrupt Signals are Active in Power-
Down Mode
PIN-PACKAGE
32 EMOD (0.740″)
32 EMOD (0.740″)
32 EMOD (0.740″)
32 EMOD (0.740″)
34 PowerCap*
34 PowerCap*
34 PowerCap*
34 PowerCap*
DS1386/DS1386P
TOP MARK
DS1386-8K-120
DS1386-8K+120
DS1386-32K-120
DS1386-32K+120
DS1386P-8K-120
DS1386P+8K-120
DS1386P-32K-120
DS1386P+32K-120
REV: 010307

Related parts for DS1386-32-120

DS1386-32-120 Summary of contents

Page 1

... ORDERING INFORMATION PART TEMP RANGE DS1386-8-120 0°C to +70°C DS1386-8-120+ 0°C to +70°C DS1386-32-120 0°C to +70°C DS1386-32-120+ 0°C to +70°C DS1386P-8-120 0°C to +70°C DS1386P-8-120+ 0°C to +70°C DS1386P-32-120 0°C to +70°C DS1386P-32-120+ 0°C to +70°C + Denotes a lead-free/RoHS-compliant device. ...

Page 2

PIN DESCRIPTION PIN EMOD PowerCap 32k 32k — 31 ...

Page 3

... OE OPERATION—WRITE REGISTERS The DS1386 is in the write mode whenever the WE (Write Enable) and CE (Chip Enable) signals are in the active (Low) state after the address inputs are stable. The latter occurring falling edge will determine the start of the write cycle. The write cycle is terminated by the earlier rising edge ...

Page 4

... BCD. Registers E through 1FFF or 7FFF are user bytes and can be used to maintain data at the user’s discretion. CLOCK ACCURACY (DIP MODULE) The DS1386 is guaranteed to keep time accuracy to within ±1 minute per month at +25°C. CLOCK ACCURACY (POWERCAP MODULE) The DS1386P and DS9034PCX are each individually tested for accuracy. Once mounted together, the module is guaranteed to keep time accuracy to within ± ...

Page 5

Figure 1. Block Diagram ...

Page 6

TIME-OF-DAY REGISTERS Registers 0 through A contain time, date, and alarm data in BCD. Fifteen bits within these 11 registers are not used and will always read 0 regardless of how they are written. Bits 6 and 7 in the ...

Page 7

WATCHDOG ALARM REGISTERS Registers C and D contain the time for the watchdog alarm. The two registers contain a time count from 00.01 to 99.99 seconds in BCD. The value written into the Watchdog Alarm Registers can be written or ...

Page 8

... Figure 2. DS1386 RAMified Watchdog Timekeeper Registers Table 1. Time-of-Day Alarm Mask Bits REGISTER (3) MINUTES (5) HOURS Note: Any other bit combinations of mask bit settings produce illogical operation. (7) DAYS 1 Alarm Once Per Minute 1 Alarm When Minutes Match 1 Alarm When Hours and Minutes Match 0 Alarm When Hours, Minutes and Days Match ...

Page 9

COMMAND REGISTER Address location 0Bh is the Command Register where mask bits, control bits and flag bits reside. The operation of each bit is as follows: Bit 7: TE (Transfer Enable). This bit when set to a logic 0 will ...

Page 10

ABSOLUTE MAXIMUM RATINGS Voltage Range on Any Pin Relative to Ground……………………………………………..-0.3V to +7.0V Operating Temperature Range………………………………………………………………...0°C to +70°C Storage Temperature Range………………………………………………………………...-40°C to +70°C Soldering Temperature…………………………..See IPC/JEDEC J-STD-020 Specification (See Note 14) This is a stress rating only and functional operation ...

Page 11

... Output High-Z from Deselect Output Hold from Address Change Write Cycle Time Write Pulse Width Address Setup Time Write Recovery Time Output High-Z from WE Output Active from WE Data Setup Time Data Hold Time INTA, INTB Pulse Width DS1386XX-120 SYMBOL MIN t 120 RC t ACC ...

Page 12

READ CYCLE (Note 1) WRITE CYCLE 1 (Notes WRITE CYCLE 2 (Notes ...

Page 13

TIMING DIAGRAM—INTERRUPT OUTPUTS PULSE MODE (See Notes 11 and 12) POWER-DOWN/POWER-UP TIMING ...

Page 14

AC ELECTRICAL CHARACTERISTICS POWER-UP/POWER-DOWN TIMING (T = 0°C to +70°C) A PARAMETER CE High to Power Fail Recovery at Power-Up V Slew Rate Power-Down CC V Slew Rate Power-Down CC V Slew Rate Power-Up CC Expected Data Retention WARNING: Under ...

Page 15

... low or the WE low transition occurs prior to or simultaneously with the CE low transition, the output buffers remain in a high impedance state during this period. 9) Each DS1386 is marked with a four-digit date code AABB. AA designates the year of manufacture. BB designates the week of manufacture. The expected t the date of manufacture ...

Page 16

... A10 DQ7 DQ6 DQ0 14 19 DQ1 DQ5 15 18 DQ2 DQ4 17 16 GND DQ3 32k x 8 Encapsulated Module 1 2 N.C. 3 N.C. DS1386P 4 PFO GND V X2 BAT 16 17 32k x 8 PowerCap Module Board (Uses DS9034PCX PowerCap) INTA 34 33 SQW 32 A14 31 A13 30 A12 29 A11 ...

Page 17

PACKAGE INFORMATION (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/DallasPackInfo ...

Page 18

PACKAGE INFORMATION (continued) (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/DallasPackInfo ...

Page 19

PACKAGE INFORMATION (continued) (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/DallasPackInfo ...

Page 20

PACKAGE INFORMATION (continued) (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/DallasPackInfo ...

Page 21

... No circuit patent licenses are implied. Maxim/Dallas Semiconductor reserves the right to change the circuitry and specifications without notice at any time The Maxim logo is a registered trademark of Maxim Integrated Products, Inc. The Dallas logo is a registered trademark of Dallas Semiconductor Corporation © 2007 Maxim Integrated Products DS1386/1386P ...

Related keywords