Purchase HM538254B, In-stock HM538254B From SeekIC.
Part Number: HM538254B
Description: The HM538253B/HM538254B is a 2-Mbit multiport video RAM equipped with a 256-kword <...
- Table of contents:
HM538254B
-
Suppliers
DataSheet
General Description
HM538254B General Description
The HM538253B/HM538254B is a 2-Mbit multiport video RAM equipped with a 256-kword × 8-bit dynamic RAM and a 512-word × 8-bit SAM (full-sized SAM). Its RAM and SAM operate independently and asynchronously. The HM538253B/HM538254B is upwardly compatible with the HM534253B/HM538123B except that the pseudo-write-transfer cycle is replaced with masked-write-transfer cycle, which has been approved by JEDEC. Furthermore, several new features have been added to the HM538253B/HM538254B which do not conflict with the conventional features. The stopping column feature realizes allows greater flexibility for split SAM register lengths. Persistent mask is also installed according to the TMS34020 features. The HM538254B has Hyper page mode which enables fast page cycle.
HM538254B Maximum Ratings
| Parameter |
Symbol |
Value |
Unit |
| Voltage on any pin relative to VSS |
VT |
1.0 to +7.0 |
V |
| Supply voltage relative to VSS |
VCC |
0.5 to +7.0 |
V |
| Short circuit output current |
Iout |
50 |
mA |
| Power dissipation |
PT |
1.0 |
W |
| Operating temperature |
Topr |
0 to +70 |
°C |
| Storage temperature |
Tstg |
55 to +125 |
°C |
HM538254B Features
· Multiport organization:RAM and SAM can operate asynchronously and simultaneously:
- RAM: 256-kword ×8-bit
- SAM: 512-word × 8-bit
· Access time
- RAM: 70 ns/80 ns/100 ns max
- SAM: 20 ns/23 ns/25 ns max
· Cycle time
- RAM: 130 ns/150 ns/180 ns min
- SAM: 25 ns/28 ns/30 ns min
· Low power
- Active RAM: 605 mW/550 mW/495 mW
SAM: 358 mW/330 mW/303 mW
- Standby 38.5 mW max
· Masked-write-transfer cycle capability
· Stopping column feature capability
· Persistent mask capability
- RAM: 256-kword ×8-bit
- SAM: 512-word × 8-bit
· Access time
- RAM: 70 ns/80 ns/100 ns max
- SAM: 20 ns/23 ns/25 ns max
· Cycle time
- RAM: 130 ns/150 ns/180 ns min
- SAM: 25 ns/28 ns/30 ns min
· Low power
- Active RAM: 605 mW/550 mW/495 mW
SAM: 358 mW/330 mW/303 mW
- Standby 38.5 mW max
· Masked-write-transfer cycle capability
· Stopping column feature capability
· Persistent mask capability
HM538254B Connection Diagram
HM50-3R9MLF
PDF/DataSheet Download
- Datasheet: HM50-3R9MLF
- File Size: 259167 KB
- Manufacturer: BITECH [Bi technologies]
- Click here to Download
- ·HM50-6R8KLF
- BITECH [Bi technologies]
- Axially Leaded Miniature Power Inductors
- 259167 KB
- ·HM511000AZP-8
- x1 Fast Page Mode DRAM
- 376789 KB
- ·HM5112805F-6
- HITACHI [Hitachi Semiconductor]
- 128M EDO DRAM (16-Mword x 8-bit) 8k refresh/4k refresh
- 492338 KB
- ·HM5112805FLTD-6
- HITACHI [Hitachi Semiconductor]
- 128M EDO DRAM (16-Mword x 8-bit) 8k refresh/4k refresh
- 492338 KB
- ·HM5112805FTD-6
- HITACHI [Hitachi Semiconductor]
- 128M EDO DRAM (16-Mword x 8-bit) 8k refresh/4k refresh
- 492338 KB
- ·HM5113805F-6
- HITACHI [Hitachi Semiconductor]
- 128M EDO DRAM (16-Mword x 8-bit) 8k refresh/4k refresh
- 492338 KB
- ·HM5113805FLTD-6
- HITACHI [Hitachi Semiconductor]
- 128M EDO DRAM (16-Mword x 8-bit) 8k refresh/4k refresh
- 492338 KB
- ·HM5113805FTD-6
- HITACHI [Hitachi Semiconductor]
- 128M EDO DRAM (16-Mword x 8-bit) 8k refresh/4k refresh
- 492338 KB
HM538254B Relative Products
HM538253B
The HM538253B/HM538254B is a 2-Mbit multiport video RAM equipped with a 256-kword × 8-bit dynamic RAM and a 512-word × 8-bit SAM (full-sized SAM). Its RAM and SAM operate independently and asynchronously. The HM538253B/HM538254B is upwardly compatible with t...
HM538123BJ-8
The HM538123B is a 1-Mbit multiport video RAM equipped with a 128-kword × 8-bit dynamic RAM and a 256-word × 8-bit SAM (serial access memory). Its RAM and SAM operate independently and asynchronously. It can transfer data between RAM and SAM. In addition, it...
HM538123BJ-7
The HM538123B is a 1-Mbit multiport video RAM equipped with a 128-kword × 8-bit dynamic RAM and a 256-word × 8-bit SAM (serial access memory). Its RAM and SAM operate independently and asynchronously. It can transfer data between RAM and SAM. In addition, it...
HM538123BJ-6
The HM538123B is a 1-Mbit multiport video RAM equipped with a 128-kword × 8-bit dynamic RAM and a 256-word × 8-bit SAM (serial access memory). Its RAM and SAM operate independently and asynchronously. It can transfer data between RAM and SAM. In addition, it...
HM538123BJ-10
The HM538123B is a 1-Mbit multiport video RAM equipped with a 128-kword × 8-bit dynamic RAM and a 256-word × 8-bit SAM (serial access memory). Its RAM and SAM operate independently and asynchronously. It can transfer data between RAM and SAM. In addition, it...
HM538123B
The HM538123B is a 1-Mbit multiport video RAM equipped with a 128-kword × 8-bit dynamic RAM and a 256-word ×8-bit SAM (serial access memory). Its RAM and SAM operate independently and asynchronously. It can transfer data between RAM and SAM. In addition, it ...
Hotspot Suppliers Product
MCC95-16IO1B
Price: 20-30 USD
THYRISTOR MODULE 1600V 2X116A - MCC95-16IO1B
TPS75701KTTR
Price: 2.62-2.86 USD
3-A low dropout (LDO) regulator, TO-263, –0.3 V to 6 V, 125 μA, Fast Transient Response, Thermal S...
LM79L12ACM
Price: 0.05-2 USD
3-Terminal Negative Regulator, SOP8, 1.2V to 47V, 100mA, 0.1μF, Internal short-circuit
A3972SBT
Price: 0.9-1.4 USD
dual dmos, full-bridge, microstepping pwm motor driver, DIP24, ±1.5 A, 50 V Continuous Output Rating
SKKT106/16E
Price: 15-20 USD
UL recognized, Thyristor / Diode Module, hard soldered joints, 2000V, SKKT106/16E
LTBHBT349H2KS M134-L1S-0G
Price: 0.1-1 USD
lcd panel, LTBHBT349H2KS M134-L1S-0G, 3M Electronics
IPD09N03LA
Price: 0.16-0.2 USD
N-channel, logic level, Superior thermal resistance, TO-252, OptiMOS 2 Power-Transistor, 25V, 50A,...
INA129UA/2K5G4
Price: 1.32-1.35 USD
instrumentation amplifier, 8DIP, 15mA, 1.3MHz, RoHS Compliant
M25PE80-VMW6TG
Price: 1-10 USD
8 Mbits of Page-Erasable Flash Memory, 2.7 to 3.6V Single Supply Voltage, SOP
GH-311
Price: 1-2 USD
GH-311 Ultrasound Motion Sensor
LL1608-FSR22J2
Price: 0.001-5 USD
Multilayer Chip Inductor, 220nH, SMD, High current handling, 1A, Reflow solderable
STK795-811A
Price: 8-14 USD
chopper type voltage regulator, 40V, 3A
