Document
ST2378E
8-bit dual supply 1.71 V to 5.5 V level translator with I/O VCC ±15 kV ESD protection
Datasheet - production data
Flip-Chip20
TSSOP20
Features
High speed – tPD = 15 ns (max.) at TA = 85 °C – VL = 1.8 V – VCC = 5.5 V
Guaranteed data rate – 13 Mbps (1.8 V VL VCC 5.5 V)
Low power dissipation – ITS-VL = ITS-VCC = 1 A (max.) at TA = 85 °C – IQVL = 100 A (max.) at TA = 85 °C – IQCC = 10 A (max.) at TA = 85 °C
Output impedance – |IOHA| = 20 A (min.) at VL = 1.8 V; VCC = 5.5 V – IOLA = 1.0 A (min.) at VL = 1.8 V; VCC = 5.5 V
Bidirectional level translation Totem pole and open drain driving for I2C
communications
5 V tolerant on enable pin
Wide operating voltage range – VL (opr.) = 1.71 V to VCC – VCC (opr.) = 1.71 V to 5.5 V
ESD performance
HBM > 15 kV ESD protection on I/O VCC lines Lead-free Flip-Chip and TSSOP package
Description
The ST2378E device is an 8-bit, dual supply, bidirectional level translator with ±15 kV ESD protection on I/Os at VCC side. It is designed to interface data transfer between low voltage ASICs/PLDs and higher voltage systems. Externally applied voltage, VCC and VL, set logic levels at both sides with the range specified as 1.71 V VL 5.5 V and VL VCC 5.5 V. For proper operation, VCC should be set higher than VL.
Utilizing a transmission-gate-based design, this device allows bidirectional asynchronous data transfer, which means each channel is allowed to have either VCC to VL or VL to VCC data transfer direction independently and no direction pin is required. The ST2378E device operates at a guaranteed data rate of 13 Mbps over the entire specified operating voltage range.
Among the other features, the OE pin allows disable mode operation whereby current consumption is reduced to less than 1 μA.
Table 1. Device summary
Part number
Temp. range (°C)
Package
Marking
ST2378EBJR ST2378ETTR
-40 to 85 -40 to 85
Flip-Chip20 ST2378E TSSOP20 ST2378E
May 2015
This is information on a product in full production.
DocID009489 Rev 3
1/20
www.st.com
Contents
Contents
ST2378E
1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.1 Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3.1 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3.2 Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5 Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
7 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 7.1 TSSOP20 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 7.2 TSSOP20 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 7.3 Flip-Chip20 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 7.4 Flip-Chip20 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
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ST2378E
1 Block diagram
Figure 1. Block diagram
Block diagram
Figure 2. Functional diagram (1 I/O line)
DocID009489 Rev 3
3/20
20
Pin settings
2 Pin settings
2.1 Pin connection
Figure 3. Pin connection
ST2378E
Flip-Chip20 (bottom view) bump side
TSSOP20 (top view)
2.2
Pin description
Flip-Chip20 pin N°
E2, D1, D2, C1, C2, B1, B2, A1
E3, D4, D3, C4, C3, B4, B3, A4
A2
A3
E1
E4
Table 2. Pin description
TSSOP20 pin N°
Symbol
Name and function
2, 18, 4, 16, 6, 14, 8, 12 I/OVL1 to I/OVL8
Data inputs/outputs
19, 3, 17, 5, 15, 7, 13, 9 I/OVCC1 to I/OVCC8 Data inputs/outputs
11 OE Output enable inputs
10
GND
Ground (0 V)
1 VL Positive supply voltage 20 VCC Positive supply voltage
4/20 DocID009489 Rev 3
ST2378E
3 Electrical data
Electrical data
3.1 3.2
Maximum ratings
Symbol
Table 3. Absolute maximum rating Parameter
Value
VL VCC VOE VI/OVL VI/OVCC IIK IIOVL IIOVCC
ISCTOUT
Supply voltage Supply voltage DC control input voltage DC I/OVL input voltage (OE = GND or VL) DC I/OVCC input voltage (OE = GND or VL) DC input diode current (OE control pin) DC output curr.