DS1216B Maxim, DS1216B Datasheet - Page 2

• Manufacturer Part Number: DS1216B
• Description: The DS1216 SmartWatch RAM and SmartWatch ROM sockets are 600-mil-wide DIP sockets with a built-in CMOS watch function, an NV RAM controller circuit, and an embedded lithium energy source
• Manufacturer: Maxim

PIN DESCRIPTION
RST
DQ0
A2
A0
GND
CE
PIN CONFIGURATIONS
SELECTOR GUIDE
TOP VIEW
DS1216B
DS1216C
DS1216D
DS1216H
DS1216E
DS1216F
PART
- Reset, Active Low
- Data Input/Output 0 (RAM)
- Address Bit 2 (Read/Write [ROM])
- Address Bit 0 (Data Input [ROM])
- Ground
- Conditioned Chip Enable, Active Low
[A0] 10
GND 14
DQ0 11
[A2] 8
RST 1
12
13
3
28-Pin Intelligent Socket
2
4
5
6
7
9
RAM/ROM
DS1216B/C/E
RAM
RAM
RAM
ROM
ROM
RAM
18
17
16
26
15
28
27
25
24
23
22
20
19
21
RAM DENSITY
V
V
WE
OE
CE
64K/256K/1M
CC
CC
64K/256K
64K/256K
B
256K/1M
16K/64K
1M/4M
2 of 15
OE
WE
V
V
V
GND
CC
CC
CC
DQ0
[A2] 10
[A0] 12
RST
B
D
13
11
14
15
16
- Output Enable, Active Low
- Write Enable, Active Low
- Switched V
- Switched V
- Switched V
32-Pin Intelligent Socket
9
3
4
5
6
7
8
2
1
PC BOARD MODIFICATION
REQUIRED FOR DENSITY
DS1216D/F/H
UPGRADE?
CC
CC
CC
No/Yes
No/Yes
for 28-/32-Pin RAM
for 24-Pin RAM
for 28-Pin RAM
No
No
No
No
23
22
21
20
19
18
17
27
25
24
32
31
30 V
29
28
26
V
WE
OE
CE
CC
CC
D