Features
ST16C32245
14-bit dual supply bus transceiver level translator
A side series resistor, 2-bit I
2
C lines
■ High speed: t
V
= 3.0 V and V
CCA
■ Low power dissipation:
I
= I
CCA
■ Symmetrical output impedance:
|I
(V
|I
(V
■ Balanced propagation delays: t
■
Power down protection on inputs and outputs
■ 26 Ω series resistor on A side outputs
■ Operating voltage range:
V
V
■ Fast I
CCB
| = I
OHA
OHB
CCA
CCB
OLA
= 3.0 V; V
CCA
| = I
OLB
= 1.65 V V
CCB
(opr) = 2.3 V to 3.6 V
(opr) = 1.65 V to 2.7 V
2
C lines 1.8 V/2.8 V level translator:
400 KHz guaranteed data rate at C
■ Bus hold provided on data input both side
■ Latch-up performance exceeds 500mA
= 4.4 ns (max) at TA = 85 °C
PD
CCB
= 2.3 V
= 20 μA(max) at TA = 85 °C
= 8 mA min
= 1.65 V or 2.3 V)
CCB
= 6 mA min
= 3.0 V; )
CCA
≅ t
PLH
PHL
= 15 pF
L
(JESD 17)
■ ESD performance:
HBM > 2000 V (MIL STD 883 method 3015);
MM > 200 V
Table 1. Device summary
μTFBGA42
Description
The ST16C32245 is a dual supply low voltage
CMOS 14-bit bus transceiver fabricated with submicron silicon gate and five-layer metal wiring
2
C
MOS technology. Designed for use as an
interface between a 3.3 V bus and a 2.5 V or
1.8 V bus in a mixed 3.3 V/1.8 V,3.3 V/2.5 V and
2.5 V/1.8 V supply systems, it achieves high
speed operation while maintaining the CMOS low
power dissipation and it includes 2-bit I
translation. This IC is intended for two-way
asynchronous communication between data
buses and the direction of data transmission is
determined by nDIR inputs. The enable inputs nG
can be used to disable the device so that the
buses are effectively isolated. The A-port
interfaces with the 3 V bus, the B-port with the
2.5 V and 1.8 V bus. All inputs are equipped with
protection circuits against static discharge, giving
them 2 KV ESD immunity and transient excess
voltage. All floating bus terminals during high Z
state do not need external pull-up or pull-down
resistor.
2
C level
Order code Package Packaging
ST16C32245TBR μTFBGA42 Tape and reel
March 2009 Rev 3 1/23
www.st.com
23
Contents ST16C32245
Contents
1 General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 I2C bus function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5 Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2/23
ST16C32245 General description
1 General description
Figure 1. Logic diagram
3/23
General description ST16C32245
Figure 2. Input and output equivalent circuit
4/23
ST16C32245 Pin settings
2 Pin settings
2.1 Pin connection
Figure 3. Pin connection (top through view)
Table 2. Pin description
Pin number
B3 1DIR Directional controls
F3 2DIR Directional controls
A4, A5, A6, B5,
B6, C5, C6, D5
D6, E5, E6,
F5, F6, G6
A3, A2, A1, B2,
B1, C2, C1, D2
D1, E2, E1,
F2, F1, G1
F4 2G
B4 1G
C3, C4, E3, E4 GND Ground (0V)
- NC No connected
D4
D3
μTFBGA42
Symbol Name and function
A1, A2, A3, A4,
A5, A6, A7, A8
A9, A10, A11,
A12, A13, A14
B1, B2, B3, B4,
B5, B6, B7, B8
B9, B10, B11,
B12, B13, B14
V
CCA
V
CCB
Data Inputs/outputs
Data Inputs/outputs
Data Inputs/outputs
Data Inputs/outputs
Output enable inputs
Output enable inputs
Positive supply voltage
Positive supply voltage
G5, G4
G2, G3
I/O
I/O
VA1
VB1
, I/O
, I/O
VA2
VB2
I2C Line (V
I2C Line (V
CCA
CCB
referred)
referred)
5/23
Pin settings ST16C32245
Table 3. Truth table
Inputs Function
G
DIR A bus B bus
L L Output Input A = B
L H Input Output B = A
HXZ Z Z
Output
Note: X = don’t care; Z = high Impedance
2.2 I2C bus function
Table 4. I2C Bus function table
2G 1G, 1DIR, 2DIR
I/O
HXZ Z
LXLL
VA
I/O input
I/O
VB
Function
2
C disabled
I
2
C comm.
I
LXV
LXOpenV
LXV
Note: Open: If I/O
up resistor. If I/O
pull-up resistor.
CCA
CCA
is not driven then the I/OVB goes in high level V
VA
is not driven then the I/OVA will go in high level V
VB
V
CCB
CCB
Open
by embedded 10 kΩ pull-
CCB
by embedded 10 kΩ
CCB
I2C comm.
I2C comm.
2
C comm.
I
6/23
ST16C32245 Maximum rating
3 Maximum rating
Stressing the device above the rating listed in the “Absolute Maximum Ratings” table may
cause permanent damage to the device. These are stress ratings only and operation of the
device at these or any other conditions above those indicated in the Operating sections of
this specification is not implied. Exposure to Absolute Maximum Rating conditions for
extended periods may affect device reliability.
Table 5. Absolute maximum ratings
Symbol Parameter Value Unit
V
V
V
V
V
V
V
V
I
I
T
I/OVA
I/OVB
I
I
I
CCA
CCB
P
T
Supply voltage -0.5 to +4.6 V
CCA
Supply voltage -0.5 to +4.6 V
CCB
V
DC input voltage -0.5 to +4.6 V
I
DC I/O voltage (Output disabled) -0.5 to +4.6 V
I/OA
DC I/O voltage (Output disabled) -0.5 to +4.6 V
I/OB
DC I/O voltage -0.5 to V
I/OA
DC I/O voltage -0.5 to V
I/OB
Level input voltage (I/OVA) -0.5 to V
Level input voltage (I/OVB) -0.5 to V
I
DC input diode current − 20 mA
IK
DC output diode current − 50 mA
OK
DC output current ± 50 mA
OA
DC output current ± 50 mA
OB
CCA
CCB
CCA
CCB
DC VCC or ground current ± 100 mA
DC VCC or ground current ± 100 mA
Power dissipation 400 mW
d
Storage temperature -65 to +150 °C
stg
Lead temperature (10 sec) 260 °C
L
+ 0.5 V
+ 0.5 V
+ 0.5 V
+ 0.5 V
7/23
Maximum rating ST16C32245
3.1 Recommended operating conditions
Table 6. Recommended operating conditions
Symbol Parameter Value Unit
V
CCA
V
CCB
V
V
I/OA
V
I/OB
V
I/OVA
V
I/OVB
T
dt/dv Input rise and fall time 0 to 10 ns/V
Supply voltage 2.3 to 3.6 V
Supply voltage 1.65 to 2.7 V
Input voltage (Dir, G) 0 to V
I
I/O voltage 0 to V
I/O voltage 0 to V
Level input voltage (I\OVA) 0 to V
Level input voltage (I\OVB) 0 to V
Operating temperature -40 to +85 °C
op
CCB
CCA
CCB
CCA
CCB
V
V
V
V
V
8/23
ST16C32245 Electrical characteristics
4 Electrical characteristics
Table 7. DC specification for V
Symbol Parameter
V
V
V
V
I
IA(HOLD)
I
OZA
I
OFF
High level input
IHA
voltage (An)
(1)
Low level input voltage
ILA
OHA
OLA
I
IA
(1)
(An)
High level output
voltage
Low level output
voltage
Input leakage current 2.7 3.6
Input hold current
High impedance
output leakage current
Power off leakage
current
V
1.65 3.0
1.65 2.3
1.65 3.0
1.65 2.3
1.65 2.3
1.65 2.3
1.65 3.0
1.65 3.0
CCA
Test condition Value
CCB
(V)
V
CCA
(V)
T
A
Min Max Min Max
-40 to 85°C
= 25 °C
1.8 2.5 1.6 1.6
2.5 3.3 2.0 2.0
1.8 2.5 0.7 0.7
2.5 3.3 0.8 0.8
I
2.3 3.0
2.3 3.0
2.3 3.0
2.3 3.0
2.3 3.0
2.3 3.0
2.7 3.6
2.7 3.6
00
=-100μA
O
I
=-8mA
O
=-8mA
I
O
I
=-6mA
O
=100μA
I
O
=8mA
I
O
I
=8mA
O
I
=6mA
O
= VCC or GND
V
I
= 0.7 V
V
I
V
= 1.6 V
I
V
= 0.8 V
I
V
= 2.0 V
I
V
= 0.8 V
I
V
= 2.0 V
I
= 0 to 3.6 V
V
I
V
= GND or 3.6 V
IA
= V
V
IB
G = V
V
IA
V
IB
or V
IHB
CCB
= GND to 3.6 V
= GND to 3.6 V
ILB
2.8 2.8
2.4 2.4
2.4 2.4
1.8 1.8
0.2 0.2
0.55 0.55
0.55 0.55
0.40 0.40
± 0.5 ± 5 μA
45 45
-45 -45
75 75
-75 -75
75 75
-75 -75
± 500
± 1.0 ± 10 μA
± 1.0 ± 10 μA
G, Dir = GND to 3.6 V
Unit
V1.8 3.3 2.0 2.0
V1.8 3.3 0.8 0.8
V
V
μA
9/23
Electrical characteristics ST16C32245
Table 7. DC specification for V
(continued)
CCA
Test condition Value
Symbol Parameter
I
OFFI2C
Power Off I2C line
leakage current
V
to 2.7
CCB
(V)
1.65
V
CCA
(V)
0
I/O
I/O
2G
1.95 3.6 V
I
CCtA
Quiescent supply
current
1.95 2.7
2.7 3.6
Maximum quiescent
ΔI
supply current / Input
CCtA
(An)
1. VCC range = 3.3±0.3; 2.5±0.2V and 2.8±0.1V; 1.8±0.15V
Table 8. DC specification for V
2.7 3.6
1.95 2.7
CCB
V
I/O
Dir, G
V
V
Test condition Value
Symbol Parameter
High level
IHB
input voltage
V
(Bn, Dir, G
Low level
ILB
input voltage
(Bn, Dir, G
(1)
V
High level
V
OHB
output
voltage
Low level
V
OLB
output
voltage
Input leakage
I
IB
current
(1)
)
)
V
1.65 3.0
1.65 2.3
1.65 3.0
1.65 2.3
V
CCB
(V)
CCA
(V)
1.8 2.5
1.8 3.3
2.5 3.3 1.6 1.6
1.8 2.5
1.8 3.3
2.5 3.3 0.7 0.7
=-100μA
2.3 3.0
2.3 3.0
2.3 3.0
2.3 3.0
2.7 3.6
I
O
=-18mA
I
O
I
=-6mA
O
I
=-6mA
O
=100μA
I
O
I
=18mA
O
=6mA
I
O
I
=6mA
O
VI = VCC or GND
VA1 ,2
VB1,2
= V
CCB
= V
IA
CCA
= V
IB
CCB
VA1,2
= GND or V
=V
IA
CCA
=V
IB
CCB
= GND or V
= GND or V
or GND
or GND
= V
or Open;
CCA
- 0.6V
or GND
0.65V
0.65V
= 25 °C
T
A
-40 to 85°C
Min Max Min Max
;
CCA
CCB
;
1.0 5 μA
220μA
CCB
0.75 mA1.95 3.6
= 25 °C
T
A
-40 to 85°C
Min Max Min Max
CCB
CCB
0.65V
0.65V
CCB
CCB
0.35V
0.35V
CCB
CCB
0.35V
0.35V
2.1 2.1
1.7 1.7
1.25 1.25
1.25 1.25
0.2 0.2
0.60 0.60
0.30 0.30
0.30 0.30
± 0.5 ± 5 μA
CCB
CCB
Unit
Unit
V
V
V
V
10/23
ST16C32245 Electrical characteristics
Table 8. DC specification for V
(continued)
CCB
Test condition Value
Symbol Parameter
I
IB(HOLD)
Input hold
current
V
1.65 2.3
1.65
1.65 3.0
1.65 3.0
V
CCB
(V)
CCA
(V)
2.3 V
2.3 3.0
2.3 3.0
2.7 3.6
VI = 0.57 V
= 1.07 V
I
V
= 0.57 V
I
= 1.07 V
V
I
V
= 0.7 V
I
V
= 1.6 V
I
V
= 0 to 2.7 V
I
High
= V
V
IA
impedance
I
OZB
output
2.7 3.6
leakage
current
1.95 3.6 V
Quiescent
I
CCtB
supply
current
Maximum
quiescent
CCtB
supply
current /
ΔI
Input (Bn,
)
DIR, G
1. VCC range = 3.3±0.3; 2.5±0.2V and 2.8±0.1V; 1.8±0.15V
1.95 2.7
2.7 3.6
2.7 3.6
1.95 3.6
1.95 2.7
IHA
VIB = GND or 2.7V
= V
G
CCB
=V
IA
CCA
VIB =V
CCB
Dir or G
I/O
V
V
=V
VA1 ,2=VCCA
=V
IB
CCB
=V
IA
CCA
or V
ILA
or GND
or GND
or GND
CCB
or Open
- 0.6V
or GND
= 25 °C
T
A
-40 to 85°C
Min Max Min Max
25 25
-25 -25
25 25
-25 -25
45 45
-45 -45
± 500
± 1.0 ± 10 μA
220μA
0.75 mA
Unit
μA
11/23
Electrical characteristics ST16C32245
Table 9. Dynamic switching characteristics
Test condition Value
Symbol Parameter
V
OLPA
V
OLPB
V
OLVA
V
OLVB
V
OHVA
Dynamic low level quiet
An output
Dynamic low level quiet
Bn output
Dynamic low level quiet
An output
Dynamic low level quiet
Bn output
Dynamic high level
quiet An output
= 25 °C -40 to 85 °C
T
V
(V)
1.8 2.5
2.5 3.3 0.35
1.8 2.5
2.5 3.3 0.6
1.8 2.5
2.5 3.3 -0.35
1.8 2.5
2.5 3.3 -0.6
1.8 2.5
2.5 3.3 2.6
CCB
V
CCA
(V)
CL =30pF
V
=0V
IL
V
IH =VCC
CL =30pF
V
=0V
IL
V
IH =VCC
CL =30pF
V
=0V
IL
V
IH =VCC
CL =30pF
V
=0V
IL
V
IH =VCC
CL =30pF
V
=0V
IL
V
IH =VCC
A
Min Typ Max Min Max.
0.25
0.25
-0.25
-0.25
Unit
V1.8 3.3 0.35
V1.8 3.3 0.25
V1.8 3.3 -0.35
V1.8 3.3 -0.25
2.1
V1.8 3.3 2.6
V
OHVB
Dynamic high level
quiet Bn output
1.8 2.5
2.5 3.3 2.0
CL =30pF
V
=0V
IL
V
IH =VCC
1.7
V1.8 3.3 1.7
12/23
ST16C32245 Electrical characteristics
Table 10. DC specification I2C lines
Symbol Parameter
V
CCB
(V)
(1)
1.8 2.65 to 3.6
1.8 2.65 to 3.6
1.8 2.65 to 3.6
1.8 2.65 to 3.6
1.8 2.65 to 3.6 0 0.25 0 0.25
1.8 2.65 to 3.6 0 0.25 0 0.25
1.8 2.65 to 3.6 0 0.25 0 0.25
1.8 2.65 to 3.6 0 0.25 0 0.25
1.65 2.3
1.65 2.3
V
V
V
High level input voltage
, I/O
(I/O
VB1
IH2
High level input voltage
(I/O
, I/O
VA1
Low level input voltage
, I/O
(I/O
VB1
IL2
Low level input voltage
(I/O
, I/O
VA1
High level output voltage
(I/O
, I/O
VB1
OH2
High level output voltage
(I/O
, I/O
VA1
VB2
VA2
VB2
VA2
VB2
VA2
)
)
)
)
)
)
Low level output voltage
OL2
(I/O
(I/O
VB1
VA1
, I/O
V
1. VCC range = 1.8±0.15 V
, I/O
VB2
VA2
),
1.65 2.3
)
Test condition Value
= 25 °C
T
V
CCA
(V)
= -20 µA;
I
OH
V
I/OVA=VCCA
= -20 µA;
I
OH
V
I/OVB=VCCB
A
Min. Max. Min. Max.
0.7 V
CCBVCCB
0.7 V
CCBVCCB
0.7 V
CCAVCCA
0.7 V
CCAVCCA
V
-0.4 V
CCB
V
-0.4 V
CCA
IOL = 1 mA;
or
V
V
I/OVB
I/OVA
=GND
0.35 0.35 V
-40 to 85 °C
0.7 V
CCBVCCB
0.7 V
CCBVCCB
0.7 V
CCAVCCA
0.7 V
CCAVCCA
-0.4
CCB
-0.4
CCA
Unit
V
V
V
13/23
Electrical characteristics ST16C32245
Table 11. AC electrical characteristics
Test condition Value
Symbol Parameter
t
PLH tPHL
Propagation delay time
An to Bn
V
CCB
(V)
V
CCA
(V)
1.8 ± 0.15 2.5 ± 0.2
CL = 30 pF
= 500 Ω
R
L
-40 to 85 °C
Min Max
1.0 5.8
2.5 ± 0.2 3.3 ± 0.3 1.0 4.4
t
PLH tPHL
Propagation delay time
Bn to An
(1)
1.8 ± 0.15 2.5 ± 0.2
C
= 30 pF
L
= 500 Ω
R
L
1.0 5.5
2.5 ± 0.2 3.3 ± 0.3 1.0 4.0
t
PZL tPZH
Output enable time
to An
G
1.8 ± 0.15 2.5 ± 0.2
C
= 30 pF
L
= 500 Ω
R
L
1.0 5.3
2.5 ± 0.2 3.3 ± 0.3 1.0 4.0
t
PZL tPZH
Output enable time
G to Bn
1.8 ± 0.15 2.5 ± 0.2
C
= 30 pF
L
= 500 Ω
R
L
1.0 8.3
2.5 ± 0.2 3.3 ± 0.3 1.0 4.6
t
PLZ tPHZ
Output disable time
G to An
1.8 ± 0.15 2.5 ± 0.2
C
= 30 pF
L
= 500 Ω
R
L
1.0 5.2
2.5 ± 0.2 3.3 ± 0.3 1.0 4.8
t
PLZ tPHZ
Output disable time
G to Bn
1.8 ± 0.15 2.5 ± 0.2
C
= 30 pF
L
= 500 Ω
R
L
1.0 4.6
2.5 ± 0.2 3.3 ± 0.3 1.0 4.4
t
OSLH
t
OSHL
Output to output skew
(2) (3)
time
1.8 ± 0.15 2.5 ± 0.2
C
= 30 pF
L
= 500 Ω
R
L
0.5
2.5 ± 0.2 3.3 ± 0.3 0.75
1. To add 2.5 ns at t
when C
2. 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 (t
3. Parameter guaranteed by design.
=60 pF.
L
PLH
, t
max propagation delay time Bn to An at V
PHL
=1.8 ±0.15 V; V
CCB
= | t
OSLH
PLHm
- t
= 2.8 ±0.1 V; RL= 500 Ω,
CCA
|, t
OSHL
= | t
PLHn
PHLm
- t
PHLn
|.
Unit
ns1.8 ± 0.15 3.3 ± 0.3 1.0 6.2
ns1.8 ± 0.15 3.3 ± 0.3 1.0 5.1
ns1.8 ± 0.15 3.3 ± 0.3 1.0 5.1
ns1.8 ± 0.15 3.3 ± 0.3 1.0 8.2
ns1.8 ± 0.15 3.3 ± 0.3 1.0 5.6
ns1.8 ± 0.15 3.3 ± 0.3 1.0 4.5
ns1.8 ± 0.15 3.3 ± 0.3 0.5
14/23
ST16C32245 Electrical characteristics
Table 12. AC I2C electrical characteristics
Test condition Value
Symbol Parameter
V
(V)
CCB
(1)
V
(V)
CCA
(1)
-40 to 85 °C
Min. Max.
Unit
1.8 ± 0.15 2.5 ± 0.2
t
rI/O
Rise time I2C input/output
voltage (20% to 80%)
2.5 ± 0.2 3.3 ± 0.3
1.8 ± 0.15 2.5 ± 0.2
t
fI/O
Fall time I2C input/output voltage
(80% to 20%)
2.5 ± 0.2 3.3 ± 0.3
1.8 ± 0.15 2.5 ± 0.2
2.5 ± 0.2 3.3 ± 0.3
1.8 ± 0.15 2.5 ± 0.2
2.5 ± 0.2 3.3 ± 0.3
t
t
PLH
PHL
Propagation delay time I2C I/O
voltage (20% to 80%) (low to
high)
Propagation delay time I2C I/O
voltage (20% to 80%) high to
low)
1.8 ± 0.15 2.5 ± 0.2
f
I/OVA,
f
I/OVB
I2C lines data rate
2.5 ± 0.2 3.3 ± 0.3
1. VCC range = 3.3±0.3; 2.5±0.2 V and 2.8 ±0.1 V; 1.8 ±0.15 V
Table 13. Capacitance characteristics
Test condition Value
Symbol Parameter
C
C
Input capacitance open open 5 pF
INB
Input/Output
I/O
capacitance
(1)
C
PD
Power dissipation
capacitance
V
V
CCB
CCA
(V)
(V)
2.5 3.3 6 pF
2.5 3.3 f = 10MHz 28 pF
1.8 3.3 28 pF
= 15 pF
C
L
= 15 ns
t
rI/O
250
250
= 15 pF
C
L
= 15 ns
t
rI/O
100
C
= 15 pF
L
= 15 ns
t
rI/O
100
C
= 15 pF
L
= 15 ns
t
rI/O
400
C
= 15 pF
L
= 15 ns
t
rI/O
TA = 25 °C
-40 to 85 °C
Min Typ Max Min Max
ns1.8 ± 0.15 3.3 ± 0.3
ns1.8 ± 0.15 3.3 ± 0.3
ns1.8 ± 0.15 3.3 ± 0.3
ns1.8 ± 0.15 3.3 ± 0.3
KHz1.8 ± 0.15 3.3 ± 0.3
Unit
1. CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current
consumption without load. (Refer to test circuit). Average current can be obtained by the following equation.
I
= CPD x VCC x fIN + ICC/14 (per circuit)
CC(opr)
15/23
Test circuit ST16C32245
5 Test circuit
Figure 4. Test circuit
Table 14. Test circuit
Tes t Sw itch
t
PLH
t
PZL
t
PZL
t
PZH
, t
PHL
, t
PLZ (VCC
, t
PLZ (VCC
, t
PHZ
= 3.0 to 3.6 V) 6 V
= 2.3 to 2.7 V or VCC = 1.65 to 1.95 V) 2V
Open
CC
GND
C
= 10/30 pF or equivalent (includes jig and probe capacitance)
L
R
= R1 = 500Ω or equivalent
L
R
= Z
T
of pulse generator (typically 50Ω)
OUT
16/23
ST16C32245 Waveforms
6 Waveforms
Table 15. Waveform symbol value
V
Symbol
3.0 to 3.6 V 2.3 to 2.7 V 1.65 to 1.95 V
V
IH
V
M
V
X
V
Y
V
CC
1.5V VCC/2 VCC/2
VOL +0.3V VOL +0.15V VOL +0.15V
VOL -0.3V VOL -0.15V VOL -0.15V
Figure 5. Waveform - propagation delay (f = 1 MHz; 50% duty cycle)
CC
V
CC
V
CC
17/23
Waveforms ST16C32245
Figure 6. Waveform - output enable and disable time (f = 1 MHz; 50% duty cycle)
Figure 7. Waveform - I
2
C propagation delay time (f = 400 KHz; 50% duty cycle, C
= 15 pF)
L
18/23
ST16C32245 Package mechanical data
7 Package mechanical data
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK
®
packages, depending on their level of environmental compliance. ECOPACK®
®
is an ST trademark.
19/23
Package mechanical data ST16C32245
Figure 8. μTFBGA42 mechanical data
μTFBGA42 MECHANICAL DATA
DIM.
MIN. TYP MAX. MIN. TYP. MAX.
A 1.0 1.1 1.1639.443.345.7
A1 0.25 9.8
A2 0.78 0.86 30.7 33.9
b 0.25 0.30 0.35 9.8 11.8 13.8
D 3.9 4.0 4.1 153.5 157.5 161.4
D1 3 118.1
E 3.4 3.5 3.6 133.9 137.8 141.7
E1 2.5 98.4
e 0.5 19.7
SE 0.25 9.8
mm. mils
20/23
7513237/A
ST16C32245 Package mechanical data
Figure 9. μTFBGA42 tape and reel
Tape & Reel TFBGA42 MECHANICAL DATA
DIM.
MIN. TYP MAX. MIN. TYP. MAX.
A 330 12.992
C 12.8 13.2 0.504 0.519
D 20.2 0.795
N 60 2.362
T 14.4 0.567
Ao 3.8 0.149
Bo 4.3 0.169
Ko 1.05 0.041
Po 3.9 4.1 0.153 0.161
P 7.9 8.1 0.311 0.319
mm. inch
21/23
Revision history ST16C32245
8 Revision history
Table 16. Document revision history
Date Revision Changes
01-Oct-2004 1 Initial release.
31-Mar-2005 2 Document status promoted from preliminary data to datasheet.
04-Mar-2009 3 Document reformatted.
TSSOP and TFBGA54 packages removed.
22/23
ST16C32245
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23/23
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