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PDF ST2378E Data sheet ( Hoja de datos )
| Número de pieza | ST2378E | |
| Descripción | 8-BIT DUAL SUPPLY 1.71V TO 5.5V LEVEL TRANSLATOR | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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ST2378E
8-BIT DUAL SUPPLY 1.71V TO 5.5V LEVEL TRANSLATOR
WITH I/OVCC ±15KV ESD PROTECTION
s HIGH SPEED: tPD = 15ns (MAX.) at TA = 85°C
VL = 1.8V; VCC = 5.5V
s GUARANTEED DATA RATE:
13Mbps (1.8V ≤ VL ≤ VCC ≤ 5.5V)
s LOW POWER DISSIPATION:
ITS-VL = ITS-VCC = 1µA (MAX.) at TA = 85°C
IQVL = 100µA (MAX.) at TA = 85°C
IQCC = 10µA (MAX.) at TA = 85°C
s OUTPUT IMPEDANCE:
|IOHA| = 20 µA (MIN.) at VL=1.8V VCC=5.5V
IOLA = 1.0 mA (MIN.) at VL=1.8V VCC=5.5V
s BIDIRECTIONAL LEVEL TRANSLATION
s TOTEM POLE AND OPEN DRAIN DRIVING
FOR I2C COMMUNICATIONS
s 5V TOLERANT ON ENABLE PIN
s THERMAL SHORT-CIRCUIT PROTECTION
s WIDE OPERATING VOLTAGE RANGE:
VL(OPR) = 1.71V to VCC
VCC(OPR) = 1.71V to 5.5V
s ESD PERFORMANCE:
HBM > 15KV ESD PROTECTION ON I/OVCC LINES
s LEADFREE FLIPCHIP AND TSSOP PACKAGES
DESCRIPTION
The ST2378E is a ±15kV ESD-protected level
translator providing the level shifting necessary to
allow data transfer in a multi-voltage system.
BLOCK DIAGRAM
Flip-Chip
TSSOP
Externally applied voltages, VCC and VL, set the
logic levels on either side of the device. It utilizes a
transmission-gate-based design to allow data
translation in either direction (VL <-> VCC) on any
single data line. The ST2378E accepts VL from
+1.71V to VCC and VCC from +1.71V to +5.5V,
making them ideal for data transfer between
low-voltage ASICs/PLDs and higher voltage
systems. The ST2378E has a three-state output
mode that reduces supply current to less than
1µA, thermal short-circuit protection, and ±15kV
ESD protection on the VCC side for greater
protection in applications that route signals
externally.
The ST2378E operates at a guaranteed data rate
of 13Mbps over the entire specified operating
voltage range. Within specific voltage domains,
higher data rates are possible.
February 2004
1/14
1 page  
ST2378E
Test Condition
Value
Symbol Parameter
VL(*)
(V)
VCC(*)
(V)
TA = 25 °C
Min. Typ Max.
-40 to 85 °C
Min. Max.
ITS-VCC High Impedance
Mode Quiescent 1.8 to 5.5 VL to 5.5
Supply Current VCC
OE= GND
1
ITS-VL High Impedance
Mode Quiescent
Supply Current VL
OE= GND
1.8 to 5.5
VL to 5.5
I/OVL = GND or VL
I/OVCC = GND or
1
VCC
1) Typical values are referred to TA=25°C
2) Power Supply Range: VL, VCC 1.8V±5%, 2.5±0.2V, 3.3±0.3V, 5.0±0.5V
5) For normal operation, ensure VL< (VCC + 0.3V). During power-up, VL > (VCC + 0.3V) will not damage the device
1
1
Unit
µA
µA
AC ELECTRICAL CHARACTERISTICS
Test Condition(5)
Value
Symbol
Parameter
CL=15pF tr=tf ≤ 6ns
Driver output
RT ≤ 50Ω (8)
-40 to +85 °C
Unit
VL (V)(2) VCC (V)(2)
Min.
Typ.(1)
Max.
tRVCC Rise Time I/OVCC(3)(8)
1.8 1.8
1.8 5.0
11 15
ns
9 15
tFVCC Fall Time I/OVCC(3)
1.8 1.8
1.8 5.0
6 15
ns
10 15
tRVL
Rise Time I/OVL(3)
1.8 1.8
1.8 5.0
12 15
ns
10 15
tFVL Fall Time I/OVL(3)
1.8 1.8
1.8 5.0
7 15
ns
7 15
tIOVL-VCC
Propagation Delay Time(4)
I/OVL-LH to I/OVCC-LH
I/OVL-HL to I/OVCC-HL
tPLH
tPHL
1.8
1.8
1.8
1.8
1.8
5.0
1.8
5.0
6 15
7 15
ns
5 15
8 15
tIOVCC-VL
Propagation Delay Time(4)
I/OVCC-LH to I/OVL-LH
I/OVCC-HL to I/OVL-HL
tPLH
tPHL
1.8
1.8
1.8
1.8
1.8
5.0
1.8
5.0
2 15
2 15
ns
5 15
6 15
tPZL tPZH Output Enable and Disable Time
tPLZ tPHZ
1.8 1.8
1.8 5.0
38 60
ns
44 60
DR Maximum Data Rate
1.8 1.8 13
1.8 5.0 13
Mbps
tOSLH
tOSHL
Channel to Channel Skew Time
(note 6, 7)
1.8 1.8
1.8 5.0
0.1 1 ns
0.5 1 ns
1) Typical values are referred to TA=25°C
2) Power Supply Range: VL, VCC 1.8V±5%, 2.5±0.2V, 3.3±0.3V, 5.0±0.5V.
3) Rise Time:10% to 90%, Fall Time 90% to 10%
4) tpd: 50% to 50%
5) For normal operation, ensure VL< (VCC + 0.3V). During power-up, VL > (VCC + 0.3V) will not damage the device
6) Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device
switching in the same direction, either HIGH or LOW (tOSLH = | tPLHm - tPLHn|, tOSHL = | tPHLm - tPHLn|
7) Each translator equally loaded; parameter guaranteed by design
8) For VCC = VL = 1.8V, tr = tf ≤ 4ns
5/14
5 Page 
DIM.
A
A1
A2
b
D
D1
E
E1
e
SE
Flip-Chip20 MECHANICAL DATA
MIN.
0.81
0.15
0.25
2.41
1.93
mm.
TYP
0.89
0.24
0.65
0.30
2.46
2.00
1.98
1.5
0.50
0.25
MAX.
1.00
0.35
0.35
2.51
2.03
MIN.
31.9
5.9
9.8
94.9
76.0
mils
TYP.
35.0
9.4
25.6
11.8
96.9
78.7
78.0
59.1
19.7
9.8
ST2378E
MAX.
39.4
13.8
13.8
98.8
79.9
7487339-C
11/14
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet ST2378E.PDF ] | |
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