CY2310ANZPVC-1 Datasheet Download

Part No.:
CY2310ANZPVC-1
Download:
Download Datasheet
Description:
[3.3V SDRAM Buffer for Mobile PCs with 4 SO-DIMMs]
File Size:
303 K
Page:
15 Pages
Logo:
Manufacturer:
CYPRESS [ CYPRESS SEMICONDUCTOR ]
PCB Prototype
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CY7C138
CY7C139
Pin Configurations
\
68-Pin PLCC
Top View
9 8 7 6
I/O
2L
I/O
3L
I/O
4L
I/O
5L
GND
I/O
6L
I/O
7L
V
CC
GND
I/O
0R
I/O
1R
I/O
2R
V
CC
I/O
3R
I/O
4R
I/O
5R
I/O
6R
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
5 4 3 2 1 68 67 66 65 64 63 62 61
60
59
58
57
56
55
54
53
CY7C138/9
52
51
50
49
48
A
5L
A
4L
A
3L
A
2L
A
1L
A
0L
INT
L
BUSY
L
GND
M/S
BUSY
R
INT
R
A
0R
A
1R
A
2R
A
3R
A
4R
47
46
45
44
2728 29 30 3132 33 34 35 36 37 38 39 40 41 42 43
C138-2
Notes:
3. I/O
8R
on the CY7C139.
4. I/O
8L
on the CY7C139.
Pin Definitions
Left Port
I/O
0L–7L(8L)
A
0L–11L
CE
L
OE
L
R/W
L
SEM
L
Right Port
I/O
0R–7R(8R)
A
0R–11R
CE
R
OE
R
R/W
R
SEM
R
Data Bus Input/Output
Address Lines
Chip Enable
Output Enable
Read/Write Enable
Semaphore Enable. When asserted LOW, allows access to eight sema-
phores. The three least significant bits of the address lines will determine
which semaphore to write or read. The I/O
0
pin is used when writing to a
semaphore. Semaphores are requested by writing a 0 into the respective
location.
Interrupt Flag. INT
L
is set when right port writes location FFE and is cleared
when left port reads location FFE. INT
R
is set when left port writes location
FFF and is cleared when right port reads location FFF.
Busy Flag
Master or Slave Select
Power
Ground
Description
INT
L
INT
R
BUSY
L
M/S
V
CC
GND
BUSY
R
Selection Guide
7C138-15
7C139-15
Maximum Access Time (ns)
Maximum Operating
Current (mA)
Maximum Standby
Current for I
SB1
(mA)
Commercial
Commercial
15
220
60
7C138-25
7C139-25
25
180
40
7C138-35
7C139-35
35
160
30
7C138-55
7C139-55
55
160
30
2