ADM3315EARUZ from Analog Devices, in a TSSOP-24. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	V+	power_out	Internally generated positive supply of 6.5 V nominal for the ADM3315E, with capacitor C4 connected between VCC and V+.
2	C2+	passive	Positive terminal of external capacitor C2, 0.1 µF recommended and up to 1 µF allowed, connected between C2+ and C2−.
3	VCC	power_in	Power supply input, 2.7 V to 3.6 V.
4	C2-	passive	Negative terminal of external capacitor C2, 0.1 µF recommended and up to 1 µF allowed; the package figure prints this pin as 'C2'.
5	EN	input	Receiver enable; a high level three-states all the receiver outputs.
6	C1+	passive	Positive terminal of external capacitor C1, 0.1 µF recommended and up to 1 µF allowed, connected between C1+ and C1−.
7	T1IN	input	Transmitter 1 input accepting TTL/CMOS levels, with an internal 400 kΩ pull-up resistor to VCC.
8	T2IN	input	Transmitter 2 input accepting TTL/CMOS levels, with an internal 400 kΩ pull-up resistor to VCC.
9	T3IN	input	Transmitter 3 input accepting TTL/CMOS levels, with an internal 400 kΩ pull-up resistor to VCC.
10	R1OUT	output	Receiver 1 output at TTL/CMOS levels, three-stated when EN is high.
11	R2OUT	output	Receiver 2 output at TTL/CMOS levels, three-stated when EN is high.
12	R3OUT	output	Receiver 3 output at TTL/CMOS levels, which stays active in shutdown.
13	R3IN	input	Receiver 3 input accepting RS-232 levels (±30 V maximum), with an internal 22 kΩ pull-down resistor to GND.
14	R2IN	input	Receiver 2 input accepting RS-232 levels (±30 V maximum), with an internal 22 kΩ pull-down resistor to GND.
15	R1IN	input	Receiver 1 input accepting RS-232 levels (±30 V maximum), with an internal 22 kΩ pull-down resistor to GND.
16	T3OUT	output	Transmitter 3 RS-232 output, typically ±5.5 V.
17	T2OUT	output	Transmitter 2 RS-232 output, typically ±5.5 V.
18	T1OUT	output	Transmitter 1 RS-232 output, typically ±5.5 V.
19	SD	input	Shutdown control; a high level disables the charge pump and transmitters and reduces quiescent current to less than 1 µA, with only receiver 3 remaining active.
20	C1-	passive	Negative terminal of external capacitor C1, 0.1 µF recommended and up to 1 µF allowed.
21	V-	power_out	Internally generated negative supply of −6.5 V nominal for the ADM3315E, with capacitor C5 connected between GND and V−.
22	C3-	passive	Negative terminal of external capacitor C3, 0.1 µF recommended and up to 1 µF allowed.
23	GND	power_in	Ground pin, which must be connected to 0 V.
24	C3+	passive	Positive terminal of external capacitor C3, 0.1 µF recommended and up to 1 µF allowed.

Key specifications

Parameter	Value
Manufacturer	Analog Devices
Package	TSSOP-24
Category	Interface ICs
Pins	24

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
Supply voltage	VCC	2.7		3.6	V	Power supply input, single supply	9
Operating temperature range		-40		85	°C	Industrial (A version)	6
Supply current (maximum)	ICC			0.85	mA		7
Shutdown supply current (maximum)	ICC			1	µA		7
Maximum data rate		250		460	kbps	RL = 3 kΩ to 7 kΩ, CL = 50 pF to 1000 pF, VCC = 3.0 V	5
Transition region slew rate		3		18	V/µs	RL = 3 kΩ, CL = 50 pF to 1000 pF	5
VCC supply voltage (absolute maximum)	VCC	-0.3		4	V		6
V+ internally generated supply (absolute maximum)	V+			9	V	Minimum printed as (VCC − 0.3 V)	6
V− internally generated supply (absolute maximum)	V−	-9		0.3	V		6
Transmitter input voltage (absolute maximum)	TIN	-0.3		6	V		6
Receiver input voltage (absolute maximum)	RIN	-30		30	V		6
Receiver output voltage (absolute maximum)	ROUT	-0.3			V	Maximum printed as (VCC + 0.3 V)	6
Transmitter output voltage (absolute maximum)	TOUT	-15		15	V		6
Storage temperature range		-65		150	°C		6
Lead temperature (soldering)				300	°C	Soldering, 10 sec	6
ESD rating, IEC 1000-4-2 air discharge (RS-232 I/Os)		-15		15	kV	IEC 1000-4-2 air	6
ESD rating, IEC 1000-4-2 contact discharge (RS-232 I/Os)		-8		8	kV	IEC 1000-4-2 contact	6
ESD rating, human body model (I/O pins)		-15		15	kV	Human body model	5
Thermal impedance, junction to ambient (TSSOP RU-24)	θJA		68		°C/W	TSSOP (RU-24)	6
Transmitter output voltage swing	TOUT		5.5		V	VCC = 3.0 V, EIA-232 load; printed as ±5.5 V for ADM3315E	9
Positive internal supply, nominal	V+		6.5		V	Nominal for ADM3315E	9
Negative internal supply, nominal	V−		-6.5		V	Nominal for ADM3315E	9
Transmitter input pull-up resistance			400		kΩ	Internal pull-up to VCC on each TIN input	9
Receiver input pull-down resistance			22		kΩ	Internal pull-down to GND on each RIN input, ADM3315E	9
Receiver input hysteresis			0.14		V	Schmitt trigger inputs	15
Charge pump oscillator frequency			250		kHz	ADM3310E/ADM3315E (300 kHz for ADM3307E)	13
Shutdown supply current (typical)	ICC		20		nA	Typical, per footnote to Table 3	7

CAD (KiCad official)

Symbol: ADM3315EARUZ
Footprint: Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm
3D model: TSSOP-24 (KiCad packages3D, STEP)
3D model files: adm3315earuz-etched.step / adm3315earuz-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); adm3315earuz.step / adm3315earuz.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: Analog Devices datasheet (20 pp, sha256 19555870393bbfda, retrieved 2026-10-31, tier: manufacturer)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
CAD: KiCad official libraries (CC-BY-SA 4.0).

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ADM3315EARUZ

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3D Model

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