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Renesas Electronics Components Datasheet

IDT70V658 Datasheet

DUAL-PORT STATIC RAM

No Preview Available !

HIGH-SPEED 3.3V
128/64/32K x 36
ASYNCHRONOUS DUAL-PORT
STATIC RAM
70V659/58/57S
Features
True Dual-Port memory cells which allow simultaneous
access of the same memory location
High-speed access
– Commercial: 10/12/15ns (max.)
– Industrial: 12ns (max.)
Dual chip enables allow for depth expansion without
external logic
IDT70V659/58/57 easily expands data bus width to 72 bits
or more using the Master/Slave select when cascading
more than one device
M/S = VIH for BUSY output flag on Master,
M/S = VIL for BUSY input on Slave
Busy and Interrupt Flags
On-chip port arbitration logic
Full on-chip hardware support of semaphore signaling
between ports
Fully asynchronous operation from either port
Separate byte controls for multiplexed bus and bus
matching compatibility
Supports JTAG features compliant to IEEE 1149.1
LVTTL-compatible, single 3.3V (±150mV) power supply for
core
LVTTL-compatible, selectable 3.3V (±150mV)/2.5V (±100mV)
power supply for I/Os and control signals on each port
Available in a 208-pin Plastic Quad Flatpack, 208-ball fine
pitch Ball Grid Array, and 256-ball Ball Grid Array
Industrial temperature range (–40°C to +85°C) is available
for selected speeds
Green parts available, see ordering information
Functional Block Diagram
BE3L
BE3R
BE2L
BE2R
BE1L
BE0L
BE1R
BE0R
R/WL
CE0L
CE1L
BB BBBBBB
EE EEEEEE
01 233210
L L L L RRRR
R/WR
CE0R
CE1R
OEL
I/O0L- I/O35L
Dout0-8_L
Dout0-8_R
Dout9-17_L Dout9-17_R
Dout18-26_L Dout18-26_R
Dout27-35_L Dout27-35_R
128/64/32K x 36
MEMORY
ARRAY
Di n_L
Di n_R
OER
I/O0R -I/O35R
A16 L(1)
A0L
Address
Decoder
ADDR_L
ADDR_R
BUSYL(2,3)
SEML
INTL(3)
CE0L
CE1L
OEL
R/WL
ARBITRATION
INTERRUPT
SEMAPHORE
LOGIC
M/S
TDI
TDO
JTAG
NOTES:
1. A16 is a NC for IDT70V658. Also, Addresses A16 and A15 are NC's for IDT70V657.
2. BUSY is an input as a Slave (M/S=VIL) and an output when it is a Master (M/S=VIH).
3. BUSY and INT are non-tri-state totem-pole outputs (push-pull).
1
Aug.23.21
Address
Decoder
OER
R/WR
CE0R
CE1R
TMS
TCK
TRST
A16R(1)
A0R
BUSYR(2,3)
SEMR
INTR(3)
4869 drw 01


Renesas Electronics Components Datasheet

IDT70V658 Datasheet

DUAL-PORT STATIC RAM

No Preview Available !

70V659/58/57S
High-Speed 3.3V 128/64/32K x 36 Asynchronous Dual-Port Static RAM
Industrial and Commercial Temperature Ranges
Description
The IDT70V659/58/57 is a high-speed 128/64/32K x 36 Asynchro-
nous Dual-Port Static RAM. The IDT70V659/58/57 is designed to be used
as a stand-alone 4/2/1Mbit Dual-Port RAM or as a combination MASTER/
SLAVE Dual-Port RAM for 72-bit-or-more word system. Using the
MASTER/SLAVE Dual-Port RAM approach in 72-bit or wider memory
system applications results in full-speed, error-free operation without the
need for additional discrete logic.
This device provides two independent ports with separate control,
address, and I/O pins that permit independent, asynchronous access for
reads or writes to any location in memory. An automatic power down
feature controlled by the chip enables (either CE0 or CE1) permit the
on-chip circuitry of each port to enter a very low standby power mode.
The 70V659/58/57 can support an operating voltage of either 3.3V
or 2.5V on one or both ports, controlled by the OPT pins. The power supply
for the core of the device (VDD) remains at 3.3V.
Pin Configuration(3,4,5,6)
VSS
VDDQR
I/O17R
I/O17L
OPTL
VSS
VDD
VDD
A0L
A1L
A2L
A3L
A4L
A5L
A6L
NC
INTL
BUSYL
R/WL
OEL
SEML
VSS
VSS
VDD
VDD
CE0L
CE1L
BE0L
BE1L
BE2L
BE3L
A7L
A8L
A9L
A10L
A11L
A12L
A13L
A14L
A15L(2)
A16L(1)
NC
NC
NC
TDO
TDI
VDD
VSS
I/O18L
I/O18R
VDDQR
Vss
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
70V659/58/57
DR208(7)
DRG208(7)
208-Pin PQFP
Top View
104
103
102
101
100
99
98
97
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
75
74
73
72
71
70
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
VSS
VDDQL
I/O0R
I/O0L
OPTR
VSS
VSS
VDD
A0R
A1R
A2R
A3R
A4R
A5R
A6R
M/S
INTR
BUSYR
R/WR
OER
SEMR
VSS
VSS
VDD
VDD
CE0R
CE1R
BE0R
BE1R
BE2R
BE3R
A7R
A8R
A9R
A10R
A11R
A12R
A13R
A14R
A15R(2)
A16R(1)
NC
NC
NC
TRST
TCK
TMS
VDD
I/O35L
I/O35R
VDDQL
VSS
4869 drw 02
NOTES:
1. Pin is a NC for IDT70V658 and IDT70V657.
2. Pin is a NC for IDT70V657.
3. All VDD pins must be connected to 3.3V power supply.
4. All VDDQ pins must be connected to appropriate power supply: 3.3V if OPT pin for that port is set to VDD (3.3V) and 2.5V if OPT pin for that port is
set to VSS (0V).
5. All VSS pins must be connected to ground.
6. Package body is approximately 28mm x 28mm x 3.5mm.
7. This package code is used to reference the package diagram.
2
Aug.23. 21


Part Number IDT70V658
Description DUAL-PORT STATIC RAM
Maker Renesas
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IDT70V658 Datasheet PDF






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