Cypress CY62157EV18 Scheda tecnica - Pagina 3

Sfoglia online o scarica il pdf Scheda tecnica per Hardware del computer Cypress CY62157EV18. Cypress CY62157EV18 13. Mobl 8-mbit (512k x 16) static ram

Stampa la pagina

Maximum Ratings

Exceeding maximum ratings may impair the useful life of the
device. These user guidelines are not tested.
Storage Temperature ................................ –65°C to + 150°C
Ambient Temperature with
Power Applied ........................................... –55°C to + 125°C
Supply Voltage to Ground
Potential ...............................–0.2V to 2.45V (V
DC Voltage Applied to Outputs
[4, 5]
in High-Z State
..............–0.2V to 2.45V (V

Electrical Characteristics

Parameter
Description
V
Output HIGH Voltage
OH
V
Output LOW Voltage
OL
V
Input HIGH Voltage
IH
V
Input LOW Voltage
IL
I
Input Leakage
IX
Current
I
Output Leakage
OZ
Current
I
V
Operating Supply
CC
CC
Current
I
Automatic CEPower Down
SB1
Current–CMOS Inputs
Automatic CE Power Down
[7]
I
SB2
Current–CMOS Inputs
Capacitance
[8]
Parameter
Description
C
Input Capacitance
IN
C
Output Capacitance
OUT
Notes
4. V
= –2.0V for pulse durations less than 20 ns.
IL(min)
5. V
= V
+ 0.5V for pulse durations less than 20 ns.
IH(max)
CC
6. Full Device AC operation assumes a 100 µs ramp time from 0 to V
7. Only chip enable (CE) and byte enables (BHE and BLE) need to be tied to CMOS levels to meet the I
8. Tested initially and after any design or process changes that may affect these parameters.
Document #: 38-05490 Rev. *D
+ 0.2V)
CCmax
+ 0.2V)
CCmax
(Over the Operating Range)
Test Conditions
I
= –0.1 mA
OH
I
= 0.1 mA
OL
V
= 1.65V to 2.25V
CC
V
= 1.65V to 2.25V
CC
GND < V
< V
I
CC
GND < V
< V
, Output Disabled
O
CC
f = f
= 1/t
max
RC
f = 1 MHz
−0.2V or CE
CE
> V
1
CC
V
> V
– 0.2V, V
IN
CC
IN
f = f
(Address and Data Only),
max
f = 0 (OE, WE, BHE and BLE), V
CE
> V
– 0.2V or CE
1
CC
V
> V
– 0.2V or V
IN
CC
f = 0, V
= V
.
CC
CC(max)
Test Conditions
T
= 25°C, f = 1 MHz, V
A
(min) and 200 µs wait time after V
CC
CY62157EV18 MoBL
[4, 5]
DC Input Voltage
......... –0.2V to 2.45V (V
Output Current into Outputs (LOW) ............................ 20 mA
Static Discharge Voltage ......................................... > 2001V
(in accordance with MIL-STD-883, Method 3015)
Latch-up Current ................................................... > 200 mA

Operating Range

Device
Range
CY62157EV18LL Industrial –40°C to +85°C 1.65V to 2.25V
Min
V
= 1.65V
1.4
CC
V
= 1.65V
CC
1.4
–0.2
–1
–1
V
= V
CC
CC(max)
I
= 0 mA
OUT
CMOS levels
< 0.2V
2
< 0.2V)
= V
.
CC
CC(max)
< 0.2V,
2
< 0.2V,
IN
= V
CC
CC(typ)
stabilization.
CC
spec. Other inputs can be left floating.
SB2
®
+ 0.2V)
CCmax
Ambient
[6]
V
CC
Temperature
55 ns
Unit
[2]
Max
Typ
V
0.2
V
V
+ 0.2V
V
CC
0.4
V
µA
+1
µA
+1
18
25
mA
1.8
3
mA
µA
2
8
µA
2
8
Max
Unit
10
pF
10
pF
Page 3 of 12
[+] Feedback