diff --git a/ic/usb-serial_ch340.yaml b/ic/usb-serial_ch340.yaml
index 58355b7..48a506a 100644
--- a/ic/usb-serial_ch340.yaml
+++ b/ic/usb-serial_ch340.yaml
@@ -1,9 +1,9 @@
 name: CH340
-# not variations are defined here
-variations: E
+# not all variations are defined here
+variations: E, G, K
 description: transceiver, USB to serial
 datasheet: http://www.wch-ic.com/downloads/file/79.html
-distributors: LCSC C99652
+distributors: LCSC C99652 (E), C14267 (G)
 
 pinout@E:
   USB:
@@ -21,16 +21,57 @@ pinout@E:
     V3: 10
   GND: 3
 
+pinout@G:
+  USB:
+    UD+: 5
+    UD-: 6
+  XTAL:
+    XI: 7
+    XO: 8
+  R232: 15
+  CTRL:
+    RTS: 14
+    CTS: 9
+    DSR: 10
+    RI: 11
+    DCD: 12
+    DTR: 13
+  UART:
+    TXD: 2
+    RXD: 3
+  POWER:
+    VCC: 16
+    V3: 4
+  GND: 1
+
+pinout@K:
+  USB:
+    UD+: 1
+    UD-: 2
+  CTRL:
+    RTS: 6
+    CTS: 5
+    DTR: 4
+  UART:
+    TXD: 8
+    RXD: 9
+  POWER:
+    VCC: 7
+    V3: 10
+  GND: 3, 11
+
 properties:
   bidir: USB
-  in: RXD, CTS
-  out: TXD, RTS, TNOW
+  in: RXD, CTS, XI, DSR, RI, DCD, R232
+  out: TXD, RTS, TNOW, XO, DTR
   power: POWER
+  passive: XTAL
   ground: GND
+  inverted: DTR, CTS, RTS, DCD, RI, DSR
 
-schematic@E:
+schematic:
   symbol: ic
-  left: USB, TNOW
+  left: USB, TNOW, XTRAL, R232
   right: UART, CTRL
   top: POWER
   bottom: GND
@@ -46,3 +87,29 @@ housing@E: # MSOP-10, dimensions from diodes MSOP-10 datasheet
   leadLength: 0.6 # L
   leadCount: 10
   pitch: 0.5 # e
+
+housing@G: # SOP-16
+  suffix: G
+  pattern: SOP
+  bodyWidth: 3.9 # body size
+  bodyLength: 9.9
+  height: 1.55
+  leadSpan: 6.0
+  leadWidth: 0.38
+  leadLength: 0.41-1.27
+  leadCount: 16
+  pitch: 1.27 # lead pitch
+
+housing@K: # ESSOP-10, dimensions not in datasheet
+  suffix: K
+  pattern: SOP
+  bodyWidth: 3.9 # body size
+  bodyLength: 4.9
+  height: 1.4
+  leadSpan: 6.15
+  leadWidth: 0.4
+  leadLength: 0.6
+  leadCount: 10
+  pitch: 1.0 # e
+  tabWidth: 2.4
+  tabLength: 2.8