DS1216 Datasheet, PDF (2/15 Pages) Dallas Semiconductor – SmartWatch RAM DS1216B/C/D/H SmartWatch ROM DS1216E/F

PIN DESCRIPTION
RST - Reset, Active Low
DQ0 - Data Input/Output 0 (RAM)
A2 - Address Bit 2 (Read/Write [ROM])
A0 - Address Bit 0 (Data Input [ROM])
GND - Ground
CE - Conditioned Chip Enable, Active Low
DS1216 SmartWatch RAM/SmartWatch ROM
OE
WE
V_CC
V_CCB
V_CCD
- 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 VCC
27 WE
26 VCCB
25
24
23
22 OE
21
20 CE
19
18
17
16
15
DS1216B/C/E
28-Pin Intelligent Socket
RST 1
2
3
4
5
6
7
8
9
[A2] 10
11
[A0] 12
DQ0 13
14
15
GND 16
32 V_CC
31
30 VCCD
29 _WE
28
27
26
25
24 _OE
23
22 CE
21
20
19
18
17
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
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