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V53C16256SH Schematic ( PDF Datasheet ) - Mosel Vitelic Corp

Teilenummer V53C16256SH
Beschreibung 256K X 16 FAST PAGE MODE CMOS DYNAMIC RAM WITH SELF REFRESH
Hersteller Mosel Vitelic Corp
Logo Mosel Vitelic  Corp Logo 




Gesamt 19 Seiten
V53C16256SH Datasheet, Funktion
MOSEL VITELIC
V53C16256SH
256K X 16 FAST PAGE MODE
CMOS DYNAMIC RAM WITH
SELF REFRESH
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)
Features
s 256K x 16-bit organization
s Fast Page Mode for a sustained data rate
of 43 MHz
s RAS access time: 40, 50 ns
s Dual CAS Inputs
s Low power dissipation
s Read-Modify-Write, RAS-Only Refresh,
CAS-Before-RAS Refresh, and Self 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 5.0V ±10% Power Supply
s TTL Interface
s Self Refresh: 512 cycles/8ms
40
40 ns
20 ns
23 ns
75 ns
50
50 ns
24 ns
28 ns
90 ns
Description
The V53C16256SH is a 262,144 x 16 bit high-
performance CMOS dynamic random access mem-
ory. The V53C16256SH offers Fast Page mode
with dual CAS inputs. An address, CAS and RAS in-
put capacitances are reduced to one quarter when
the x4 DRAM is used to construct the same memory
density. The V53C16256SH has symmetric ad-
dress 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 23ns.
The V53C16256SH is best suited for graphics,
and DSP applications.
Device Usage Chart
Operating
Temperature
Range
0°C to 70°C
Package Outline
KT
••
V53C16256SH Rev. 0.1 December 1998
Access Time (ns)
40 50
••
1
Power
Std.
Temperature
Mark
Blank






V53C16256SH Datasheet, Funktion
MOSEL VITELIC
AC Characteristics (Cont’d)
# Symbol Parameter
33 tDH
34 tWOH
35 tOED
36 tRWC
37 tRRW
Data in Hold Time
Write to OE Hold Time
OE to Data Delay Time
Read-Modify-Write Cycle Time
Read-Modify-Write Cycle RAS Pulse
Width
38 tCWD
39 tRWD
CAS to WE Delay
RAS to WE Delay in Read-Modify-Write
Cycle
40 tCRW
41 tAWD
42 tPC
CAS Pulse Width (RMW)
Col. Address to WE Delay
Fast Page Mode Read or Write Cycle
Time
43 tCP
44 tCAR
45 tCAP
46 tDHR
47 tCSR
CAS Precharge Time
Column Address to RAS Setup Time
Access Time from Column Precharge
Data in Hold Time Referenced to RAS
CAS Setup Time CAS-before-RAS
Refresh
48 tRPC
49 tCHR
RAS to CAS Precharge Time
CAS Hold Time CAS-before-RAS
Refresh
50 tPCM
Fast Page Mode Read-Modify-Write
Cycle Time
51 tT
52 tREF
53 tREF
54 tRASS
55 tRPS
56 tCHS
57 tCHD
Transition Time (Rise and Fall)
Refresh Interval (512 Cycles)
Self Refresh
RAS Pulse Width During Self Refresh
RAS Precharge Time During Self Refresh
CAS Hold Time Width During Self Refresh
CAS Low Time During Self Refresh
V53C16256SH
40 50
Min. Max. Min. Max. Unit Notes
5 7 ns 14
6 8 ns 14
6 8 ns 14
110 130 ns
75 87 ns
30 34 ns 12
58 68 ns 12
48 52 ns
38 42 ns 12
23 28 ns
5 7 ns
20 24 ns
22 27 ns 7
30 40 ns
10 10 ns
0 0 ns
8 12 ns
60 70 ns
3 50 3 50 ns 15
8 8 ms 17
8 8 ms
100 100 µs 18
100 100 ns 18
100 100 ns 18
100 100 ns 18
V53C16256SH Rev. 0.1 December 1998
6

6 Page









V53C16256SH pdf, datenblatt
MOSEL VITELIC
V53C16256SH
Waveforms of Fast Page Mode Read-Write Cycle
RAS
VIH
VIL
UCAS, LCAS
V
IH
VIL
ADDRESS
V
IH
VIL
V
WE
IH
VIL
V
OE
IH
VIL
VI/OH
I/O
VI/OL
tRAS (1)
tRCD (6)
t CSH (4)
tPCM (50)
t RAD (24)
tCAS (5)
tRAH (9)
tASC (10)
tASR (8)
tASC (10)
tCAH (11)
ROW
ADD
COLUMN
ADDRESS
tCP(43)
tCAS (5)
COLUMN
ADDRESS
tASC (10)
tCAH (11)
tRP (3)
tRSH (W)(25)
tCRP (13)
tCAS (5)
tCAR (44)
t CAH (11)
COLUMN
ADDRESS
t RCS (7)
tRWD (39)
t CWD (38)
tCWD (38)
t CWL (26)
t CWL (26)
t CWD (38)
tRWL(31)
tCWL (26)
tCAA (20)
t OAC (17)
tAWD (41)
tAWD (41)
t WP(29)
tOAC (17)
tAWD (41)
tWP(29)
tOAC (17)
tWP(29)
tOED (35)
tCAC (18)
tRAC (19)
tCAP (45)
tCAA (20)
tOED (35)
tCAC (18)
tHZ (22)
tDH (33)
tDS (32)
tCAP (45)
tCAA (20)
tHZ (22)
tDH (33)
tDS (32)
tOED (35)
tCAC (18)
tHZ (22)
tDH (33)
tDS (32)
OUT
IN
OUT
IN
OUT
IN
tLZ (21)
tLZ (21)
tLZ (21)
16256L-11
Waveforms of RAS-Only Refresh Cycle
RAS
VIH
V IL
UCAS, LCAS VIH
V IL
ADDRESS VIH
V IL
tCRP (13)
tASR (8)
ROW ADDR
tRAH (9)
NOTE: WE, OE = Don’t care
tRC (2)
tRAS (1)
tRP (3)
16256L-12
V53C16256SH Rev. 0.1 December 1998
12
Don’t Care
Undefined

12 Page





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