DS1216D Dallas Semiconductor, DS1216D Datasheet
DS1216D
Manufacturer Part Number
DS1216D
Description
Socket; DIP; 32; -0.3 to ; 5 pF (Input), 7 pF (Output); 0 to degC
Manufacturer
Dallas Semiconductor
Datasheet
1.DS1216D.pdf
(2 pages)
Specifications of DS1216D
Capacitance
5 pF (Input), 7 pF (Output)
Number Of Pins
28
Package Type
DIP
Temperature, Operating
0 to +70 °C
Temperature, Storage
-40 to +70 °C
Voltage, Ground
-0.3 to +7
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DS1216D
Manufacturer:
DALLAS
Quantity:
5 530
Company:
Part Number:
DS1216D
Manufacturer:
DALLAS
Quantity:
5 510
Part Number:
DS1216D
Manufacturer:
MXX
Quantity:
20 000
FEATURES
§ Keeps track of hundredths of seconds,
§ Converts standard 2k x 8 up to 512k x 8
§ Embedded lithium energy cell maintains
§ Watch function is transparent to RAM
§ Month and year determine the number of days
ORDERING INFORMATION
DS1216B, DS1216C, DS1216D, DS1216E,
DS1216F, DS1216H
marking identification.)
PIN DESCRIPTION
DQ0
A2
A0
GND
Vcc
V
V
www.maxim-ic.com
RST
CE
OE
WE
CC
CC
DS1216D
DS1216H
DS1216B
DS1216C
DS1216E
DS1216F
seconds, minutes, hours, days, date of the
month, months, and years
CMOS static RAMs into nonvolatile memory
watch information and retains RAM data
operation
in each month; leap-year compensation valid
up to 2100
B
D - Switched V
PART
-
- Data Input/Output 0 [RAM]
- Address Bit 2 (Read/Write [ROM])
- Address Bit 0 (Data Input [ROM])
- Ground
- Conditioned Chip Enable
- Output Enable
- Write Enable
- Switched V
- Switched V
RESET
RAM/ROM
(See Figure 2 for letter suffix
CC
CC
CC
RAM
RAM
RAM
ROM
ROM
RAM
for 28-/32-Pin RAM
for 24-Pin RAM
for 28-Ppin RAM
RAM DENSITY
64k/256k/1M
64k/256k
64k/256k
256k/1M
16k/64k
1M/4M
1 of 13
SmartWatch RAM DS1216B/C/D/H
§ Lithium energy source is electrically
§ Proven gas-tight socket contacts
§ Full ±10% operating range
§ Operating temperature range: 0°C to +70°C
§
SmartWatch ROM DS1216E/F
disconnected to retain freshness until power is
applied for the first time
Accuracy is better than ±1 minute/month @
+25°C
GND 14
[A2] 8
[A0] 10
DQ0 11
RST 1
PCB MODIFICATION REQUIRED
3
12
13
2
4
5
6
7
9
FOR DENSITY UPGRADE?
28-Pin Intelligent Socket
DS1216B/C/D/E
No/Yes
No/Yes
No
No
No
No
26
18
17
16
DS1216
15
28
27
25
24
23
22
21
20
19
V
V
WE
OE
CE
CC
CC
B
111901
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DS1216D Summary of contents
Page 1
... RAM data § Watch function is transparent to RAM operation § Month and year determine the number of days in each month; leap-year compensation valid up to 2100 ORDERING INFORMATION DS1216B, DS1216C, DS1216D, DS1216E, DS1216F, DS1216H (See Figure 2 for letter suffix marking identification.) PIN DESCRIPTION - RST ...
Page 2
... GND 16 17 DS1216D/E/F/H 32-Pin Intelligent Socket DESCRIPTION The DS1216 SmartWatch RAM and SmartWatch ROM Sockets are 600mil-wide DIP sockets with a built-in CMOS watch function RAM controller circuit, and an embedded lithium energy source. The sockets provide an NV RAM solution for memory sized from 512k x 8 with package sizes from 26 pins to 32 pins ...