HYB5116405BJBT-50- Datasheet, PDF (5/28 Pages) Siemens Semiconductor Group – 4M x 4-Bit Dynamic RAM 2k & 4k Refresh

HYB5116(7)405BJ/BT-50/-60/-70
4M x 4-EDO DRAM
I/O1 I/O2 I/O3 I/O4
WE
. _CAS
&
No. 2 Clock
Generator
Data in
Buffer
4
Data out
Buffer
OE
4
Column
11 _Address
A0
Buffer(11)
A1
A2
A3
Refresh
A4
Controller
A5
A6
11
Column
Decoder
Sense Amplifier
I/O Gating
4
A7
Refresh
A8
Counter (11)
A9
A10
11
2048
x4
Row
11 _Address
Buffers(11)
Row
Memory Array
11 _Decoder 2048 _2048x2048x4
RAS
No. 1 Clock
Generator
Voltage Down
Generator
VCC
VCC (internal)
Block Diagram for HYB 5117405
Semiconductor Group
5