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Part: MSM514212-28
Category:
Memory
-> DRAM
-> DRAMs and ASMs
Description: 5K X 8 Line Memory
Company: Oki Semiconductor
Datasheet: Download MSM514212-28 datasheet File size : 644 kB
Request For quote: Find where to buy MSM514212-28
Datasheet text preview:
E2L0028-17-Y1 ¡ Semiconductor
¡ Semiconductor MSM514212
5,048-Word ¥ 8-Bit Line Memory
This version: SM51998 2 M Jan. 1421 Previous version: Dec. 1996
DESCRIPTION
The OKI MSM514212 is a high-performance serial-line memory. It is designed for use in NTSC, PAL or SECAM Video line buffer applications such as digital comb filters in TVs/VTRs, IDTV (Improved Definition Television), time based correction, or other applications that use serial data including facsimiles, digital copy machines, etc. High-reliability and low-power consumption are accomplished by using CMOS dynamic memory cells. It has separate 8-bit-wide serial input and serial output ports that use independent data clocks to support asynchronous read and write operations. Different clock rates are also supported that allow alternate data rates between input and output data streams. A wide range of variable delay bits (40 bits to 5,048 bits) are supported offering greater design flexibility. Internal logic keeps all asynchronous accesses from being delayed by arbitrating the data storage, and data retrieval requirements to provide maximum performance at all times. All input and output signals are TTL compatible, and the MSM514212 is packaged in a standard 400 mil 28-pin plastic ZIP.
FEATURES
· Single power supply: 5 V ±10% · Capacity: 5,048 words ¥ 8 bits · Access: I/O asynchronous · Access time: 28 ns (min.) · Cycle time : 28 ns (min.) · Delay bits: Variable (40 to 5,048) · Low current consumption: 30 mA (max.) · Operating voltage range: 4.5 V to 5.5 V · Operating temperature range : 0°C to 70°C · Package : 28-pin 400 mil plastic ZIP (ZIP28-P-400-1.27)
(Product : MSM514212-xxZS) xx indicates speed rank.
PRODUCT FAMILY
Family MSM514212-28 MSM514212-34 MSM514212-50 Cycle Time (Min.) 28 ns 34 ns 50 ns Access Time (Min.) 28 ns 34 ns 40 ns Power Dissipation (Max.) 230 mA 200 mA 170 mA
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¡ Semiconductor
MSM514212
PIN CONFIGURATION (TOP VIEW)
VSS DIN3 DIN1 VCC DOUT1
1 3 5 7 9
2 4 6 8
VSS DIN2 DIN0 DOUT0
10 DOUT2 12 VSS 14 RE 16 VSS 18 DOUT5 20 DOUT7 22 WE 24 DIN7 26 DIN5 28 WCK
DOUT3 11 RR 13 RCK 15 DOUT4 17 DOUT6 19
VCC 21
WR 23 DIN6 25 DIN4 27
28-Pin Plastic ZIP
Pin Name WCK WR WE DIN0 - 7 RCK RR RE DOUT0 - 7 VCC VSS
Function Write Clock Write Address Reset Write Enable Data Input Read Clock Read Address Reset Read Enable Data Output Power Supply (5 V) Ground (0 V)
Note:
The same power supply voltage must be provided to every VCC pin, and the same GND voltage level must be provided to every VSS pin.
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¡ Semiconductor
BLOCK DIAGRAM
DOUT0
RCK Read Timing Controller Data-out Buffer RR Read Reset Controller 32-Word Data Register
DOUT1
Data-out Buffer
DOUT2
Data-out Buffer
DOUT3
Data-out Buffer
DOUT4
Data-out Buffer
DOUT5
Data-out Buffer
DOUT6
Data-out Buffer
DOUT7
Data-out Buffer
RE
32-Word Data Register
32-Word Data Register
32-Word Data Register
32-Word Data Register
32-Word Data Register
32-Word Data Register
32-Word Data Register
Read/Write Select Controller
5032 Memory Array
5032 Memory Array
5032 Memory Array
5032 Memory Array
5032 Memory Array
5032 Memory Array
5032 Memory Array
5032 Memory Array
Read/Write X Decoder Controller
32-Word
Data Register
32-Word
Data Register
32-Word
Data Register
32-Word
Data Register
32-Word
Data Register
32-Word
Data Register
32-Word
Data Register
32-Word
Data Register
WR
Write Reset Controller
VBB Generator
16-Word 16-Word 16-Word 16-Word 16-Word 16-Word 16-Word 16-Word Sub-Register Sub-Register Sub-Register Sub-Register Sub-Register Sub-Register Sub-Register Sub-Register 16-Word 16-Word 16-Word 16-Word 16-Word 16-Word 16-Word 16-Word Sub-Register Sub-Register Sub-Register Sub-Register Sub-Register Sub-Register Sub-Register Sub-Register
WCK Write Timing Controller Data-in Buffer Data-in Buffer Data-in Buffer Data-in Buffer Data-in Buffer Data-in Buffer Data-in Buffer Data-in Buffer WE
MSM514212
DIN0
DIN1
DIN2
DIN3
DIN4
DIN5
DIN6
DIN7
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Others parts begin by ms
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