HYB514171BJ-50- SIEMENS [Siemens Semiconductor Group], HYB514171BJ-50- Datasheet - Page 4

• Manufacturer Part Number: HYB514171BJ-50-
• Description: 256k x 16-Bit Dynamic RAM
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Block Diagram
Semiconductor Group
WE
UCAS
LCAS
A0
A1
A2
A3
A4
A5
A6
A7
A8
RAS
9
9
&
No.2 Clock
Counter (9)
No.1 Clock
Buffers (9)
Buffers (9)
Generator
Generator
Controller
Address
Refresh
Refresh
Address
Column
Row
9
9
4
Decoder
Data In
Buffer
Row
I/O1 I/O2
16
Substrate Bias
Generator
512
9
. .
.
. . .
. .
. . .
.
.
I/O16
HYB 514171BJ-50/-60
Data Out
Buffer
512 x 512 x 16
Sense Amplifier
Memory Array
I/O Gating
Column
Decoder
256k
x
512
16
16
V
V
CC
SS
OE
16 DRAM
1998-10-01
SPB02827
16