DS1386 DALLAS [Dallas Semiconductor], DS1386 Datasheet
DS1386
Available stocks
Related parts for DS1386
DS1386 Summary of contents
Page 1
... A10 DQ7 DQ6 13 DQ0 19 DQ5 14 DQ1 18 DQ4 15 DQ2 17 DQ3 16 GND DS1386 32k x 8 32-Pin Encapsulated Package GND V X2 ...
Page 2
... The DS1386 is a nonvolatile static RAM with a full-function Real Time Clock (RTC), alarm, watchdog timer, and interval timer which 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 bytewide static RAM ...
Page 3
... PACKAGES The DS1386 is available in two packages (32-pin DIP module and 34-pin PowerCap module). The 32-pin DIP style module integrates the crystal, lithium energy source, and silicon all in one package. The 34-pin PowerCap Module Board is designed with contacts for connection to a separate PowerCap (DS9034PCX) that contains the crystal and battery ...
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
BLOCK DIAGRAM Figure ...
Page 6
TIME OF DAY REGISTERS Registers and A contain time of day data in BCD. Ten bits within these eight registers are not used and will always read 0 regardless of how they are ...
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
... DS1386 RAMIFED WATCHDOG TIMEKEEPER REGISTERS Figure ...
Page 9
TIME OF DAY ALARM MASK BITS Figure 3 REGISTER (3) MINUTES (5) HOURS NOTE: Any other bit combinations of mask bit settings produce illogical operation. COMMAND REGISTER Address location 0Bh is the ...
Page 10
WAF - Bit 1 Watchdog Alarm Flag - This bit is set to a logic 1 when a watchdog alarm interrupt occurs. This bit is read only. The bit is reset when any of the watchdog alarm registers are accessed. ...
Page 11
ABSOLUTE MAXIMUM RATINGS* Voltage on Any Pin Relative to Ground Operating Temperature Storage Temperature Soldering Temperature * This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the ...
Page 12
... 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 , Pulse Width INTA INTB (0°C to 70°C; V DS1386XX-120 SYMBOL MIN MAX t 120 RC t 120 ACC t 120 CO t 100 ...
Page 13
READ CYCLE (Note 1) WRITE CYCLE 1 (Notes WRITE CYCLE 2 (Notes ...
Page 14
TIMING DIAGRAM: INTERRUPT OUTPUTS PULSE MODE POWER-DOWN/POWER-UP TIMING (SEE NOTES 11 AND 12 ...
Page 15
AC ELECTRICAL CHARACTERISTICS POWER-UP/POWER-DOWN TIMING PARAMETER High to Power Fail CE 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 no circumstances ...
Page 16
... WE WE 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. 10. All voltages are referenced to ground. ...
Page 17
... AC TEST CONDITIONS: Input Levels Transition Times DS1386 32-PIN 740-MIL MODULE PKG 32-PIN DIM MIN MAX A IN 1.680 1.740 MM 42.67 44. 0.715 0.740 MM 18.16 18. 0.335 0.365 MM 8.51 9. 0.075 0.105 MM 1.91 2. 0.015 0.030 MM 0.38 0. 0.140 0.180 MM 3.56 4. 0.090 0.110 MM 2.29 2. 0.590 0.630 MM 14 ...
Page 18
... DS1386P PKG INCHES DIM MIN NOM A 0.920 0.925 B 0.980 0.985 0.052 0.055 E 0.048 0.050 F 0.015 0.020 G 0.025 0.027 NOTE: For the PowerCap Version: a. Dallas Semiconductor recommends that PowerCap module bases experience one pass though solder reflow oriented with the label side up (“live-bug”). ...
Page 19
... DS1386P WITH DS9034PCX ATTACHED PKG INCHES DIM MIN NOM A 0.920 0.925 B 0.955 0.960 C 0.240 0.245 D 0.052 0.055 E 0.048 0.050 F 0.015 0.020 G 0.020 0.025 MAX 0.930 0.965 0.250 0.058 0.052 0.025 0.030 ...
Page 20
RECOMMENDED POWERCAP MODULE LAND PATTERN PKG INCHES DIM MIN NOM A - 1.050 B - 0.826 C - 0.050 D - 0.030 E - 0.112 MAX - - - - - ...