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Part Number: P4C187
Description: The P4C187/L are 65, 536-bit ultra high speed static RAMs organized as 64K x 1. The CMOS memories requ...
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P4C187
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DataSheet
General Description
P4C187 General Description
The P4C187/L are 65, 536-bit ultra high speed static RAMs organized as 64K x 1. The CMOS memories require no clocks or refreshing and have equal access and cycle times. The RAMs operate from a single 5V ± 10% tolerance power supply. Data integrity is maintained for supply voltages down to 2.0V, typically drawing 10mA.
Access times as fast as 10 nanoseconds are available, greatly enhancing system speeds. CMOS reduces power consumption to a low 743mW active, 193/83mW standby for TTL/CMOS inputs and only 5.5 mW standby for the P4C187L.
The P4C187/L are available in 22-pin 300 mil DIP, 24-pin 300 mil SOJ, and 22-pin LCC packages providing excellent board level densities.
P4C187 Maximum Ratings
|
Symbol |
Parameter |
Value |
Unit |
|
VCC |
Power Supply Pin with Respect to GND |
0.5 to +7 |
V |
|
VTERM |
Terminal Voltage with Respect to GND (up to 7.0V) |
0.5 to VCC +0.5 |
V |
|
TA |
Operating Temperature |
55 to +125 |
°C |
|
TBIAS |
Temperature Under Bias |
55 to +125 |
°C |
|
TSTG |
Storage Temperature |
65 to +150 |
°C |
|
PT |
Power Dissipation |
1.0 |
W |
|
IOUT |
DC Output Current |
50 |
mA |
P4C187 Features
`Full CMOS, 6T Cell
`High Speed (Equal Access and Cycle Times)
10/12/15/20/25 ns (Commercial)
12/15/20/25/35 ns (Industrial)
15/20/25/35/45 ns (Military)
`Low Power Operation
743 mW Active -10
660/770 mW Active for -12/15
550/660 mW Active for -20/25 /35
193/220 mW Standby (TTL Input)
83/110 mW Standby (CMOS Input) P4C187
5.5 mW Standby (CMOS Input) P4C187L (Military)
`Single 5V±10% Power Supply
`Data Retention with 2.0V Supply (P4C187L Military)
`Separate Data I/O
`Three-State Output
`TTL Compatible Output
`Fully TTL Compatible Inputs
`Standard Pinout (JEDEC Approved)
22-Pin 300 mil DIP
24-Pin 300 mil SOJ
22-Pin 290x490 mil LCC
`High Speed (Equal Access and Cycle Times)
10/12/15/20/25 ns (Commercial)
12/15/20/25/35 ns (Industrial)
15/20/25/35/45 ns (Military)
`Low Power Operation
743 mW Active -10
660/770 mW Active for -12/15
550/660 mW Active for -20/25 /35
193/220 mW Standby (TTL Input)
83/110 mW Standby (CMOS Input) P4C187
5.5 mW Standby (CMOS Input) P4C187L (Military)
`Single 5V±10% Power Supply
`Data Retention with 2.0V Supply (P4C187L Military)
`Separate Data I/O
`Three-State Output
`TTL Compatible Output
`Fully TTL Compatible Inputs
`Standard Pinout (JEDEC Approved)
22-Pin 300 mil DIP
24-Pin 300 mil SOJ
22-Pin 290x490 mil LCC
P4C187 Connection Diagram
P4C187
PDF/DataSheet Download
- Datasheet: P4C187
- File Size: 72436 KB
- Manufacturer: ETC [ETC]
- Click here to Download
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P4C187 Relative Products
P4C174
The P4C174 is a 65,536 bit high speed cache tag static RAM organized as 8K x 8. The CMOS memory has equal access and cycle times. Inputs are fully TTL-compatible.The cache tag RAMs P4C174operate from a single 5V±10% power supply. An 8-bit data comparator wit...
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P4C1682
The P4C1681 and P4C1682 are 16,384-bit (4K x 4) ultra high speed static RAMs similar to the P4C168, but with separate data I/O pins. The P4C1681 features a transparent write operation; the outputs of the P4C1682 are in high impedance during the write cycle. ...
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The P4C1681 and P4C1682 are 16,384-bit (4K x 4) ultra high speed static RAMs similar to the P4C168, but with separate data I/O pins. The P4C1681 features a transparent write operation; the outputs of the P4C1682 are in high impedance during the write cycle. ...
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