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PDF V53C16256 Data sheet ( Hoja de datos )

Número de pieza V53C16256
Descripción 256K x 16 FAST PAGE MODE CMOS DYNAMIC RAM
Fabricantes Mosel Vitelic Corp 
Logotipo Mosel Vitelic  Corp Logotipo



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No Preview Available ! V53C16256 Hoja de datos, Descripción, Manual

MOSEL VITELIC
V53C16256H
256K x 16 FAST PAGE MODE
CMOS DYNAMIC RAM
PRELIMINARY
HIGH PERFORMANCE
Max. RAS Access Time, (tRAC)
Max. Column Address Access Time, (tCAA)
Min. Fast Page Mode Cycle Time, (tPC)
Min. Read/Write Cycle Time, (tRC)
30
30 ns
16 ns
19 ns
65 ns
35
35 ns
18 ns
21 ns
70 ns
40
40 ns
20 ns
23 ns
75 ns
45
45 ns
22 ns
25 ns
80 ns
50
50 ns
24 ns
28 ns
90 ns
60
60 ns
30 ns
35 ns
110 ns
Features
s 256K x 16-bit organization
s Fast Page Mode for a sustained data rate
of 53 MHz.
s RAS access time: 30, 35, 40, 45, 50, 60 ns
s Dual CAS Inputs
s Low power dissipation
s Read-Modify-Write, RAS-Only Refresh,
CAS-Before-RAS Refresh
s Refresh Interval: 512 cycles/8 ms
s Available in 40-pin 400 mil SOJ and
40/44L-pin 400 mil TSOP-II packages
s Single +5V ±10% Power Supply
s TTL Interface
Description
The V53C16256H is a 262,144 x 16 bit high-
performance CMOS dynamic random access mem-
ory. The V53C16256H offers Fast Page mode with
dual CAS inputs. An address, CAS and RAS input
capacitances are reduced to one quarter when the
x4 DRAM is used to construct the same memory
density. The V53C16256H has symmetric address
and accepts 512 cycle 8ms interval.
All inputs are TTL compatible. Fast Page Mode
operation allows random access up to 512 x 16 bits,
within a page, with cycle times as short as 19ns.
The V53C16256H is best suited for graphics, and
DSP applications.
Device Usage Chart
Operating
Temperature
Range
0°C to 70 °C
-40°C to +85°C
Package Outline
KT
••
••
30
Access Time (ns)
35 40 45 50
••••
••••
Power
Temperature
60 Std.
Mark
• • Blank
••
I
V53C16256H Rev. 2.3 June 1998
1

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V53C16256 pdf
MOSEL VITELIC
V53C16256H
AC Characteristics
Over all temperature range, VCC = 5 V ±10%, VSS = 0V unless otherwise noted
AC Test conditions, input pulse levels 0 to 3V
JEDEC
# Symbol Symbol Parameter
30 35 40 45 50 60
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Unit Notes
1 tRL1RH1
2 tRL2RL2
tRAS
tRC
RAS Pulse Width 30 75K 35 75K 40 75 45 75K 50 75K 60 75K ns
Read or Write Cycle 65 70 75 80 90 110 ns
Time
3 tRH2RL2
tRP
RAS Precharge
25
25
25
25
30
40
ns
Time
4 tRL1CH1
5 tCL1CH1
6 tRL1CL1
7 tWH2CL2
tCSH
tCAS
tRCD
tRCS
CAS Hold Time
30
35
40
45
50
60
ns
CAS Pulse Width 5
6 12 13 14 15 ns
RAS to CAS Delay 15 20 16 24 17 28 18 32 19 36 20 45 ns
Read Command
0
0
0
0
0
0 ns
Setup Time
4
8 tAVRL2
tASR Row Address
0
0
0
0
0
0 ns
Setup Time
9 tRL1AX
tRAH Row Address Hold 5
6
7
8
9 10 ns
Time
10 tAVCL2
tASC Column Address
0
0
0
0
0
0 ns
Setup Time
11 tCL1AX
tCAH Column Address
5
5
5
6
7 10 ns
Hold Time
12 tCL1RH1(R) tRSH (R) RAS Hold Time
10
10
12
13
14
15
ns
(Read Cycle)
13 tCH2RL2
tCRP
CAS to RAS
5
5
5
5
5
5 ns
Precharge Time
14 tCH2WX
tRCH
Read Command
0
0
0
0
0
0 ns 5
Hold Time
Referenced to CAS
15 tRH2WX
tRRH
Read Command
0
0
0
0
0
0 ns 5
Hold Time
Referenced to RAS
16 tOEL1RH2 tROH
RAS Hold Time
6
7
8
9 10 10 ns
Referenced to OE
17 tGL1QV
tOAC Access Time from
10
11
12
13
14
15 ns
OE
18 tCL1QV
tCAC Access Time from
10
11
12
13
14
15 ns 6, 7
CAS
19 tRL1QV
tRAC Access Time from
30
35
45
50
55
60 ns 6, 8, 9
RAS
20 tAVQV
tCAA Access Time from
16
18
20
22
24
30 ns 6, 7,
Column Address
10
V53C16256H Rev. 2.3 June 1998
5

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V53C16256 arduino
MOSEL VITELIC
Waveforms of OE-Controlled Write Cycle
VIH
RAS V IL
UCAS, LCAS V IH
V IL
V IH
ADDRESS
V IL
V IH
WE V IL
V IH
OE
V IL
V IH
I/O
V IL
tAR (23)
tRAS (1)
tRC (2)
tCRP (13)
tRCD (6)
t CSH (4)
tRSH (W)(12)
tCAS (5)
tASR (8)
tRAD (24)
tRAH (9)
t CAR (44)
t CAH (11)
t ASC (10)
ROW ADDRESS
COLUMN ADDRESS
t CWL (26)
t RWL (31)
t WP (29)
tWOH (34)
t OED (35)
tDH (33)
t DS (32)
VALID DATA-IN
V53C16256H
t RP (3)
t CRP (13)
16256H-07
Waveforms of Read-Modify-Write Cycle
VIH
RAS
VIL
VIH
UCAS, LCAS VIL
VIH
ADDRESS VIL
t CRP (13)
t ASR (8)
ROW
ADDRESS
tRAD (24)
WE VIH
VIL
VIH
OE
VIL
I/O VIH VOH
VIL VOL
tAR (23)
tRWC (36)
tRRW (37)
t RCD (6)
t CSH (4)
t RSH (W)(25)
t CRW (40)
tRAH (9)
t ASC (10)
COLUMN
ADDRESS
t RWD (39)
t
CAH (11)
t AWD (41)
t CWD (38)
t CAA (20)
t OAC (17)
t CAC (18)
t RAC (19)
tLZ (21)
t OED (35)
t HZ (22)
VALID
DATA-OUT
t CWL (26)
t RWL (31)
t WP (29)
t DS (32)
VALID
DATA-IN
t DH (33)
t RP (3)
t CRP (13)
16256H-08
V53C16256H Rev. 2.3 June 1998
Don’t Care
Undefined
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