DataSheet.es    


PDF P4C148 Data sheet ( Hoja de datos )

Número de pieza P4C148
Descripción Ultra High Speed 4K x 1 Static CMOS RAMS
Fabricantes Performance Semiconductor 
Logotipo Performance Semiconductor Logotipo



Hay una vista previa y un enlace de descarga de P4C148 (archivo pdf) en la parte inferior de esta página.


Total 6 Páginas

No Preview Available ! P4C148 Hoja de datos, Descripción, Manual

P4C148, P4C149
ULTRA HIGH SPEED 1K x 4
STATIC CMOS RAMS
P4C148/P4C149
FEATURES
Full CMOS, 6T Cell
High Speed (Equal Access and Cycle Times)
– 10/12/15/20/25 ns (Commercial)
– 15/20/25/35 ns (P4C148 Military)
Low Power Operation
– 715 mW Active –10 (Commecial)
– 550 mW Active –25 (Commercial)
– 110 mW Standby (TTL Input) P4C148
– 55 mW Standby (CMOS Input) P4C148
Single 5V ± 10% Power Supply
Two Options
– P4C148 Low Power Standby Mode
– P4C149 Fast Chip Select Control
Common Input/Output Ports
Three-State Outputs
Fully TTL Compatible Inputs and Outputs
Standard Pinout (JEDEC Approved)
– 18 Pin 300 mil DIP
DESCRIPTION
The P4C148 and P4C149 are 4,096-bit ultra high-speed
static RAMs organized as 1K x 4. Both devices have
common input/output ports. The P4C148 enters the standby
mode when the chip enable (CE) goes HIGH; with CMOS
input levels, power consumption is extremely low in this
mode. The P4C149 features a fast chip select capability
using CS. The CMOS memories require no clocks or
refreshing, and have equal access and cycle times. Inputs
are fully TTL-compatible. The RAMs operate from a single
5V ± 10% tolerance power supply.
Access times as fast as 10 nanoseconds are available,
permitting greatly enhanced system operating speeds.
CMOS is used to reduce power consumption when active;
for the P4C148, consumption is further reduced in the
standby mode.
The P4C148 and P4C149 are available in 18-pin 300 mil
DIP packages providing excellent board level densities.
FUNCTIONAL BLOCK DIAGRAM
PIN CONFIGURATIONS
A
A
A
A
A
A
I/O 1
I/O 2
I/O 3
I/O 4
ROW
SELECT
INPUT
DATA
CONTROL
POWER
DOWN
4,096-BIT
MEMORY
ARRAY
COLUMN I/O
COLUMN
SELECT
CE/CS
WE
A AAA
P4C148 ONLY
A0
A1
A2
A3
A4
A5
A6
CE, CS
GND
1
2
3
4
5
6
7
8
9
18 VCC
17 A9
16 A8
15 A7
14 I/O4
13 I/O3
12 I/O2
11 I/O1
10 WE
P4C148 DIP (P1, D1)
P4C149 DIP (P1)
TOP VIEW
Means Quality, Service and Speed
1Q97
19

1 page




P4C148 pdf
AC TEST CONDITIONS
Input Pulse Levels
GND to 3.0V
Input Rise and Fall Times
3ns
Input Timing Reference Level
1.5V
Output Timing Reference Level
1.5V
Output Load
See Figures 1 and 2
TRUTH TABLE
Mode
Standby
Read
Write
CE
H
L
L
WE
X
H
L
P4C148/P4C149
Output
High Z
DOUT
High Z
Power
Standby
Active
Active
DOUT
255
+5
480
30pF (5pF* for tHZ, tLZ, tOHZ,
tOLZ, tWZ and tOW)
DOUT
RTH = 166.5
VTH = 1.73 V
30pF (5pF* for tHZ, tLZ, tOHZ,
tOLZ, tWZ and tOW)
Figure 1. Output Load
* including scope and test fixture.
Figure 2. Thevenin Equivalent
Note:
Due to the ultra-high speed of the P4C147, care must be taken when
testing this device; an inadequate setup can cause a normal functioning
part to be rejected as faulty. Long high-inductance leads that cause
supply bounce must be avoided by bringing the VCC and ground planes
directly up to the contactor fingers. A 0.01 µF high frequency capacitor
is also required between VCC and ground. To avoid signal reflections,
proper termination must be used; for example, a 50test environment
should be terminated into a 50load with 1.73V (Thevenin Voltage) at
the comparator input, and a 116resistor must be used in series with
DOUT to match 166(Thevenin Resistance).
23

5 Page










PáginasTotal 6 Páginas
PDF Descargar[ Datasheet P4C148.PDF ]




Hoja de datos destacado

Número de piezaDescripciónFabricantes
P4C147Ultra High Speed 4K x 1 Static CMOS RAMSPerformance Semiconductor
Performance Semiconductor
P4C148Ultra High Speed 4K x 1 Static CMOS RAMSPerformance Semiconductor
Performance Semiconductor
P4C149Ultra High Speed 4K x 1 Static CMOS RAMSPerformance Semiconductor
Performance Semiconductor

Número de piezaDescripciónFabricantes
SLA6805M

High Voltage 3 phase Motor Driver IC.

Sanken
Sanken
SDC1742

12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters.

Analog Devices
Analog Devices


DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares,
permitiéndote verlos en linea o descargarlos en PDF.


DataSheet.es    |   2020   |  Privacy Policy  |  Contacto  |  Buscar