DS1216 SmartWatch RAM/SmartWatch ROM
PIN DESCRIPTION
RST
DQ0
A2
A0
GND
CE
- 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
OE
WE
V
CC
V
CC
B
V
CC
D
- Output Enable, Active Low
- Write Enable, Active Low
- Switched V
CC
for 28-/32-Pin RAM
- Switched V
CC
for 24-Pin RAM
- Switched V
CC
for 28-Pin RAM
PIN CONFIGURATIONS
TOP VIEW
RST
1
2
3
4
5
6
7
[A2] 8
9
[A0] 10
DQ0 11
12
13
GND 14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
CE
OE
V
CC
WE
V
CC
B
1
2
3
4
5
6
7
8
9
[A2] 10
11
[A0] 12
DQ0 13
14
15
GND 16
RST
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
V
CC
V
CC
D
WE
OE
CE
DS1216B/C/E
28-Pin Intelligent Socket
DS1216D/F/H
32-Pin Intelligent Socket
SELECTOR GUIDE
PART
DS1216B
DS1216C
DS1216D
DS1216E
DS1216F
DS1216H
RAM/ROM
RAM
RAM
RAM
ROM
ROM
RAM
RAM DENSITY
16K/64K
64K/256K
256K/1M
64K/256K
64K/256K/1M
1M/4M
PC BOARD MODIFICATION
REQUIRED FOR DENSITY
UPGRADE?
No/Yes
No
No/Yes
No
No
No
2 of 15
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
