CY7C1049CV33 Automotive
4-Mbit (512 K × 8) Static RAM
4-Mbit (512 K × 8) Static RAM
Features
■
Functional Description
The CY7C1049CV33 Automotive is a high performance CMOS
Static RAM organized as 524,288 words by eight bits. Easy
memory expansion is provided by an active LOW Chip Enable
(CE), an active LOW Output Enable (OE), and three-state
drivers. Writing to the device is accomplished by taking Chip
Enable (CE) and Write Enable (WE) inputs LOW. Data on the
eight I/O pins (I/O
0
through I/O
7
) is then written into the location
specified on the address pins (A
0
through A
18
).
Reading from the device is accomplished by taking Chip Enable
(CE) and Output Enable (OE) LOW while forcing Write Enable
(WE) HIGH. Under these conditions, the contents of the memory
location specified by the address pins appear on the I/O pins.
The eight input and output pins (I/O
0
through I/O
7
) are placed in
a high impedance state when the device is deselected (CE
HIGH), the outputs are disabled (OE HIGH), or during a write
operation (CE LOW, and WE LOW).
The CY7C1049CV33 Automotive is available in standard
400-mil-wide 36-pin SOJ package and 44-pin TSOP II package
with center power and ground (revolutionary) pinout.
Temperature ranges
❐
Automotive -A: –40 °C to 85 °C
❐
Automotive-E: –40 °C to 125 °C
High speed
❐
t
AA
= 10 ns
Low active power
❐
360 mW (max)
2.0 V data retention
Automatic power down when deselected
TTL-compatible inputs and outputs
Easy memory expansion with CE and OE features
■
■
■
■
■
■
Logic Block Diagram
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
CE
WE
OE
INPUT BUFFER
ROW DECODER
IO0
IO1
SENSE AMPS
IO2
IO3
IO4
IO5
IO6
512K x 8
ARRAY
COLUMN DECODER
POWER
DOWN
IO7
A13
A14
A15
A16
A17
A18
Cypress Semiconductor Corporation
Document Number: 001-67511 Rev. *C
•
198 Champion Court
•
San Jose
,
CA 95134-1709
•
408-943-2600
Revised March 21, 2014
CY7C1049CV33 Automotive
Contents
Selection Guide ................................................................ 3
Pin Configuration ............................................................. 3
Pin Definitions .................................................................. 3
Maximum Ratings ............................................................. 4
Operating Range ............................................................... 4
Electrical Characteristics ................................................. 4
Capacitance ...................................................................... 5
Thermal Resistance .......................................................... 5
AC Test Loads and Waveforms ....................................... 5
AC Switching Characteristics ......................................... 6
Switching Waveforms ...................................................... 7
Truth Table ........................................................................ 9
Ordering Information ...................................................... 10
Ordering Code Definitions ......................................... 10
Package Diagrams .......................................................... 11
Acronyms ........................................................................ 13
Document Conventions ................................................. 13
Units of Measure ....................................................... 13
Document History Page ................................................. 14
Sales, Solutions, and Legal Information ...................... 15
Worldwide Sales and Design Support ....................... 15
Products .................................................................... 15
PSoC® Solutions ...................................................... 15
Cypress Developer Community ................................. 15
Technical Support ..................................................... 15
Document Number: 001-67511 Rev. *C
Page 2 of 15
CY7C1049CV33 Automotive
Selection Guide
Description
Maximum Access Time
Maximum Operating Current
Maximum CMOS Standby Current
Automotive-A
Automotive-E
Automotive-A
Automotive-E
-10
10
100
–
10
–
-12
12
95
–
10
–
-15
15
–
95
–
15
Unit
ns
mA
mA
mA
mA
Pin Configuration
Figure 1. 36-pin SOJ pinout (Top View)
A
0
A
1
A
2
A
3
A
4
CE
I/O
0
I/O
1
V
CC
GND
I/O
2
I/O
3
WE
A
5
A
6
A
7
A
8
A
9
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
NC
A
18
A
17
A
16
A
15
OE
I/O
7
I/O
6
GND
V
CC
I/O
5
I/O
4
A
14
A
13
A
12
A
11
A
10
NC
Figure 2. 44-pin TSOP II pinout (Top View)
NC
NC
A
0
A
1
A
2
A
3
A
4
CE
I/O
0
I/O
1
V
CC
V
SS
I/O
2
I/O
3
WE
A
5
A
6
A
7
A
8
A
9
NC
NC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
NC
NC
NC
A
18
A
17
A
16
A
15
OE
I/O
7
I/O
6
V
SS
V
CC
I/O
5
I/O
4
A
14
A
13
A
12
A
11
A
10
NC
NC
NC
Pin Definitions
Pin Name
A
0
–A
18
36-pin SOJ
Pin Number
1–5, 14–18,
20–24, 32–35
44-pin TSOP II
Pin Number
3–7, 16–20,
26–30, 38–41
I/O Type
Input
Description
Address inputs used to select one of the address locations.
I/O
0
–I/O
7
7, 8, 11, 12, 25, 9, 10, 13, 14,
26, 29, 30
31, 32, 35, 36
NC
[1]
19, 36
1, 2, 21, 22, 23,
24, 25, 42, 43,
44
15
8
37
Input/Output
Bidirectional data I/O lines.
Used as input or output lines depending
on operation.
No Connect
No connects.
This pin is not connected to the die.
WE
CE
OE
13
6
31
Input/Control
Write Enable input, active LOW.
When selected LOW, a WRITE is
conducted.
Input/Control
Chip Enable input, active LOW.
When LOW, selects the chip. When
HIGH, deselects the chip.
Input/Control
Output Enable, active LOW.
Controls the direction of the I/O pins.
When LOW, the I/O pins are allowed to behave as outputs. When
deasserted HIGH, I/O pins are tri-state, and act as input data pins.
Ground
Ground for the device.
Should be connected to ground of the system.
Power Supply
Power supply inputs to the device.
V
SS
, GND
V
CC
10, 28
9, 27
12, 34
11, 33
Note
1. NC pins are not connected on the die.
Document Number: 001-67511 Rev. *C
Page 3 of 15
CY7C1049CV33 Automotive
Maximum Ratings
Exceeding maximum ratings may impair the useful life of the
device. These user guidelines are not tested.
Storage Temperature ............................... –65
C
to +150C
Ambient Temperature with
Power Applied ......................................... –55
C
to +125
C
Supply Voltage on
V
CC
to Relative GND
[2]
......................... –0.5 V to +4.6 VDC
Voltage Applied to Outputs
in High Z State
[2]
................................ –0.5 V to V
CC
+ 0.5 V
Input Voltage
[2]
.................................. –0.5 V to V
CC
+ 0.5 V
Current into Outputs (LOW) ........................................ 20 mA
Static discharge voltage
(MIL-STD-883, Method 3015) ................................. > 2001 V
Latch up current ..................................................... > 200 mA
Operating Range
Range
Automotive-A
Automotive-E
Ambient Temperature
–40
C
to +85
C
–40
C
to +125
C
V
CC
3.3 V
0.3 V
Electrical Characteristics
Over the Operating Range
Parameter
V
OH
V
OL
V
IH
V
IL
I
IX
I
CC
I
SB1
Description
Output HIGH
Voltage
Test Conditions
V
CC
= Min; I
OH
= –4.0 mA
-10
Min
2.4
–
2.0
–0.3
GND < V
I
< V
CC
V
CC
= Max,
f = f
MAX
= 1/t
RC
Auto-A
Auto-E
V
CC
Operating
Supply Current
Auto-A
Auto-E
–1
–
–
–
–
–
–
–
Max
–
0.4
V
CC
+ 0.3
0.8
+1
–
100
–
40
–
10
–
Min
2.4
–
2.0
–0.3
–1
–
–
–
–
–
–
–
-12
Max
–
0.4
V
CC
+ 0.3
0.8
+1
–
95
–
40
–
10
–
Min
2.4
–
2.0
–0.3
–
–20
–
–
–
–
–
–
-15
Max
–
0.4
V
CC
+ 0.3
0.8
–
+20
–
95
–
45
–
15
mA
mA
mA
mA
mA
Unit
V
V
V
V
A
Output LOW Voltage V
CC
= Min; I
OL
= 8.0 mA
Input HIGH Voltage
Input LOW Voltage
[2]
Input Load Current
Max. V
CC
, CE > V
IH
; Auto-A
Automatic CE
Power Down Current V
IN
> V
IH
or V
IN
< V
IL
,
Auto-E
– TTL Inputs
f = f
MAX
Automatic CE
Max. V
CC
,
Power Down Current CE > V
CC
– 0.3 V,
V
IN
> V
CC
– 0.3 V, or
– CMOS Inputs
V
IN
< 0.3 V, f = 0
Auto-A
Auto-E
I
SB2
Note
2. V
IL(min)
= –2.0 V and V
IH(max)
= V
CC
+ 0.5 V for pulse durations of less than 20 ns.
Document Number: 001-67511 Rev. *C
Page 4 of 15
CY7C1049CV33 Automotive
Capacitance
Parameter
[3]
C
IN
C
OUT
Description
Input capacitance
Output capacitance
Test Conditions
T
A
= 25
C,
f = 1 MHz, V
CC
= 3.3 V
Max
8
8
Unit
pF
pF
Thermal Resistance
Parameter
[3]
Description
Thermal resistance
(junction to ambient)
Thermal resistance
(junction to case)
Test Conditions
Test conditions follow standard test methods and
procedures for measuring thermal impedance,
per EIA / JESD51.
36-pin SOJ
46.51
18.8
44-pin TSOP II Unit
41.66
10.56
°C/W
°C/W
JA
JC
AC Test Loads and Waveforms
Figure 3. AC Test Loads and Waveforms
[4]
10-ns devices:
OUTPUT
50
* CAPACITIVE LOAD CONSISTS
OF ALL COMPONENTS OF THE
TEST ENVIRONMENT
1.5 V
Z = 50
12-, 15-ns devices:
3.3 V
OUTPUT
30 pF
R2
351
R 317
30 pF*
(a)
High Z characteristics:
3.3 V
90%
10%
OUTPUT
5 pF
(b)
R 317
3.0 V
GND
Rise Time: 1 V/ns
ALL INPUT PULSES
90%
10%
R2
351
(c)
Fall Time: 1 V/ns
(d)
Notes
3. Tested initially and after any design or process changes that may affect these parameters.
4. AC characteristics (except High Z) for 10 ns parts are tested using the load conditions shown in
Figure 3
(a). All other speeds are tested using the Thevenin load
shown in
Figure 3
(b). High Z characteristics are tested for all speeds using the test load shown in
Figure 3
(d).
Document Number: 001-67511 Rev. *C
Page 5 of 15
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